1
|
Azagury M, Buganim Y. Unlocking trophectoderm mysteries: In vivo and in vitro perspectives on human and mouse trophoblast fate induction. Dev Cell 2024; 59:941-960. [PMID: 38653193 DOI: 10.1016/j.devcel.2024.03.029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Revised: 11/10/2023] [Accepted: 03/18/2024] [Indexed: 04/25/2024]
Abstract
In recent years, the pursuit of inducing the trophoblast stem cell (TSC) state has gained prominence as a compelling research objective, illuminating the establishment of the trophoblast lineage and unlocking insights into early embryogenesis. In this review, we examine how advancements in diverse technologies, including in vivo time course transcriptomics, cellular reprogramming to TSC state, chemical induction of totipotent stem-cell-like state, and stem-cell-based embryo-like structures, have enriched our insights into the intricate molecular mechanisms and signaling pathways that define the mouse and human trophectoderm/TSC states. We delve into disparities between mouse and human trophectoderm/TSC fate establishment, with a special emphasis on the intriguing role of pluripotency in this context. Additionally, we re-evaluate recent findings concerning the potential of totipotent-stem-like cells and embryo-like structures to fully manifest the trophectoderm/trophoblast lineage's capabilities. Lastly, we briefly discuss the potential applications of induced TSCs in pregnancy-related disease modeling.
Collapse
Affiliation(s)
- Meir Azagury
- Department of Developmental Biology and Cancer Research, The Institute for Medical Research Israel-Canada, The Hebrew University-Hadassah Medical School, Jerusalem 91120, Israel
| | - Yosef Buganim
- Department of Developmental Biology and Cancer Research, The Institute for Medical Research Israel-Canada, The Hebrew University-Hadassah Medical School, Jerusalem 91120, Israel.
| |
Collapse
|
2
|
Zhu X, Li Y, Dong Q, Tian C, Gong J, Bai X, Ruan J, Gao J. Small Molecules Promote the Rapid Generation of Dental Epithelial Cells from Human-Induced Pluripotent Stem Cells. Int J Mol Sci 2024; 25:4138. [PMID: 38673725 PMCID: PMC11049943 DOI: 10.3390/ijms25084138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2024] [Revised: 04/04/2024] [Accepted: 04/05/2024] [Indexed: 04/28/2024] Open
Abstract
Human-induced pluripotent stem cells (hiPSCs) offer a promising source for generating dental epithelial (DE) cells. Whereas the existing differentiation protocols were time-consuming and relied heavily on growth factors, herein, we developed a three-step protocol to convert hiPSCs into DE cells in 8 days. In the first phase, hiPSCs were differentiated into non-neural ectoderm using SU5402 (an FGF signaling inhibitor). The second phase involved differentiating non-neural ectoderm into pan-placodal ectoderm and simultaneously inducing the formation of oral ectoderm (OE) using LDN193189 (a BMP signaling inhibitor) and purmorphamine (a SHH signaling activator). In the final phase, OE cells were differentiated into DE through the application of Purmorphamine, XAV939 (a WNT signaling inhibitor), and BMP4. qRT-PCR and immunostaining were performed to examine the expression of lineage-specific markers. ARS staining was performed to evaluate the formation of the mineralization nodule. The expression of PITX2, SP6, and AMBN, the emergence of mineralization nodules, and the enhanced expression of AMBN and AMELX in spheroid culture implied the generation of DE cells. This study delineates the developmental signaling pathways and uses small molecules to streamline the induction of hiPSCs into DE cells. Our findings present a simplified and quicker method for generating DE cells, contributing valuable insights for dental regeneration and dental disease research.
Collapse
Affiliation(s)
- Ximei Zhu
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi’an Jiaotong University, Xi’an 710004, China; (X.Z.); (Y.L.); (Q.D.)
- Center of Oral Public Health, College of Stomatology, Xi’an Jiaotong University, Xi’an 710004, China;
| | - Yue Li
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi’an Jiaotong University, Xi’an 710004, China; (X.Z.); (Y.L.); (Q.D.)
- Center of Oral Public Health, College of Stomatology, Xi’an Jiaotong University, Xi’an 710004, China;
| | - Qiannan Dong
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi’an Jiaotong University, Xi’an 710004, China; (X.Z.); (Y.L.); (Q.D.)
- Center of Oral Public Health, College of Stomatology, Xi’an Jiaotong University, Xi’an 710004, China;
| | - Chunli Tian
- Center of Oral Public Health, College of Stomatology, Xi’an Jiaotong University, Xi’an 710004, China;
| | - Jing Gong
- Department of Pediatric Dentistry, College of Stomatology, Xi’an Jiaotong University, Xi’an 710004, China; (J.G.); (X.B.)
| | - Xiaofan Bai
- Department of Pediatric Dentistry, College of Stomatology, Xi’an Jiaotong University, Xi’an 710004, China; (J.G.); (X.B.)
| | - Jianping Ruan
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi’an Jiaotong University, Xi’an 710004, China; (X.Z.); (Y.L.); (Q.D.)
- Center of Oral Public Health, College of Stomatology, Xi’an Jiaotong University, Xi’an 710004, China;
| | - Jianghong Gao
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi’an Jiaotong University, Xi’an 710004, China; (X.Z.); (Y.L.); (Q.D.)
- Center of Oral Public Health, College of Stomatology, Xi’an Jiaotong University, Xi’an 710004, China;
| |
Collapse
|
3
|
Okubo T, Rivron N, Kabata M, Masaki H, Kishimoto K, Semi K, Nakajima-Koyama M, Kunitomi H, Kaswandy B, Sato H, Nakauchi H, Woltjen K, Saitou M, Sasaki E, Yamamoto T, Takashima Y. Hypoblast from human pluripotent stem cells regulates epiblast development. Nature 2024; 626:357-366. [PMID: 38052228 PMCID: PMC10849967 DOI: 10.1038/s41586-023-06871-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Accepted: 11/15/2023] [Indexed: 12/07/2023]
Abstract
Recently, several studies using cultures of human embryos together with single-cell RNA-seq analyses have revealed differences between humans and mice, necessitating the study of human embryos1-8. Despite the importance of human embryology, ethical and legal restrictions have limited post-implantation-stage studies. Thus, recent efforts have focused on developing in vitro self-organizing models using human stem cells9-17. Here, we report genetic and non-genetic approaches to generate authentic hypoblast cells (naive hPSC-derived hypoblast-like cells (nHyCs))-known to give rise to one of the two extraembryonic tissues essential for embryonic development-from naive human pluripotent stem cells (hPSCs). Our nHyCs spontaneously assemble with naive hPSCs to form a three-dimensional bilaminar structure (bilaminoids) with a pro-amniotic-like cavity. In the presence of additional naive hPSC-derived analogues of the second extraembryonic tissue, the trophectoderm, the efficiency of bilaminoid formation increases from 20% to 40%, and the epiblast within the bilaminoids continues to develop in response to trophectoderm-secreted IL-6. Furthermore, we show that bilaminoids robustly recapitulate the patterning of the anterior-posterior axis and the formation of cells reflecting the pregastrula stage, the emergence of which can be shaped by genetically manipulating the DKK1/OTX2 hypoblast-like domain. We have therefore successfully modelled and identified the mechanisms by which the two extraembryonic tissues efficiently guide the stage-specific growth and progression of the epiblast as it establishes the post-implantation landmarks of human embryogenesis.
Collapse
Affiliation(s)
- Takumi Okubo
- Center for iPS Cell Research and Application, Kyoto University, Kyoto, Japan
| | - Nicolas Rivron
- Institute of Molecular Biotechnology of the Austrian Academy of Sciences (IMBA), Vienna BioCenter (VBC), Vienna, Austria
| | - Mio Kabata
- Center for iPS Cell Research and Application, Kyoto University, Kyoto, Japan
| | - Hideki Masaki
- Institute of Medical Science, University of Tokyo, Tokyo, Japan
- Advanced Research Institute, Tokyo Medical and Dental University, Tokyo, Japan
| | | | - Katsunori Semi
- Center for iPS Cell Research and Application, Kyoto University, Kyoto, Japan
| | - May Nakajima-Koyama
- Center for iPS Cell Research and Application, Kyoto University, Kyoto, Japan
| | - Haruko Kunitomi
- Center for iPS Cell Research and Application, Kyoto University, Kyoto, Japan
| | - Belinda Kaswandy
- Center for iPS Cell Research and Application, Kyoto University, Kyoto, Japan
| | - Hideyuki Sato
- Institute of Medical Science, University of Tokyo, Tokyo, Japan
- Advanced Research Institute, Tokyo Medical and Dental University, Tokyo, Japan
| | - Hiromitsu Nakauchi
- Institute of Medical Science, University of Tokyo, Tokyo, Japan
- Advanced Research Institute, Tokyo Medical and Dental University, Tokyo, Japan
- Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Stanford, CA, USA
| | - Knut Woltjen
- Center for iPS Cell Research and Application, Kyoto University, Kyoto, Japan
| | - Mitinori Saitou
- Center for iPS Cell Research and Application, Kyoto University, Kyoto, Japan
- Institute for the Advanced Study of Human Biology (WPI-ASHBi), Kyoto University, Kyoto, Japan
- Department of Anatomy and Cell Biology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Erika Sasaki
- Central Institute for Experimental Animals, Kawasaki, Japan
| | - Takuya Yamamoto
- Center for iPS Cell Research and Application, Kyoto University, Kyoto, Japan.
- Institute for the Advanced Study of Human Biology (WPI-ASHBi), Kyoto University, Kyoto, Japan.
- Medical-risk Avoidance Based on iPS Cells Team, RIKEN Center for Advanced Intelligence Project (AIP), Kyoto, Japan.
| | - Yasuhiro Takashima
- Center for iPS Cell Research and Application, Kyoto University, Kyoto, Japan.
| |
Collapse
|
4
|
Ichikawa T, Zhang HT, Panavaite L, Erzberger A, Fabrèges D, Snajder R, Wolny A, Korotkevich E, Tsuchida-Straeten N, Hufnagel L, Kreshuk A, Hiiragi T. An ex vivo system to study cellular dynamics underlying mouse peri-implantation development. Dev Cell 2022; 57:373-386.e9. [PMID: 35063082 PMCID: PMC8826647 DOI: 10.1016/j.devcel.2021.12.023] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Revised: 08/23/2021] [Accepted: 12/23/2021] [Indexed: 01/09/2023]
Abstract
Upon implantation, mammalian embryos undergo major morphogenesis and key developmental processes such as body axis specification and gastrulation. However, limited accessibility obscures the study of these crucial processes. Here, we develop an ex vivo Matrigel-collagen-based culture to recapitulate mouse development from E4.5 to E6.0. Our system not only recapitulates embryonic growth, axis initiation, and overall 3D architecture in 49% of the cases, but its compatibility with light-sheet microscopy also enables the study of cellular dynamics through automatic cell segmentation. We find that, upon implantation, release of the increasing tension in the polar trophectoderm is necessary for its constriction and invagination. The resulting extra-embryonic ectoderm plays a key role in growth, morphogenesis, and patterning of the neighboring epiblast, which subsequently gives rise to all embryonic tissues. This 3D ex vivo system thus offers unprecedented access to peri-implantation development for in toto monitoring, measurement, and spatiotemporally controlled perturbation, revealing a mechano-chemical interplay between extra-embryonic and embryonic tissues.
Collapse
Affiliation(s)
- Takafumi Ichikawa
- European Molecular Biology Laboratory (EMBL), 69117 Heidelberg, Germany
| | - Hui Ting Zhang
- European Molecular Biology Laboratory (EMBL), 69117 Heidelberg, Germany; Collaboration for PhD degree between EMBL and Heidelberg University, Faculty of Biosciences, Heidelberg, Germany
| | - Laura Panavaite
- European Molecular Biology Laboratory (EMBL), 69117 Heidelberg, Germany; Collaboration for PhD degree between EMBL and Heidelberg University, Faculty of Biosciences, Heidelberg, Germany
| | - Anna Erzberger
- European Molecular Biology Laboratory (EMBL), 69117 Heidelberg, Germany.
| | - Dimitri Fabrèges
- European Molecular Biology Laboratory (EMBL), 69117 Heidelberg, Germany
| | - Rene Snajder
- European Molecular Biology Laboratory (EMBL), 69117 Heidelberg, Germany
| | - Adrian Wolny
- European Molecular Biology Laboratory (EMBL), 69117 Heidelberg, Germany
| | | | | | - Lars Hufnagel
- European Molecular Biology Laboratory (EMBL), 69117 Heidelberg, Germany
| | - Anna Kreshuk
- European Molecular Biology Laboratory (EMBL), 69117 Heidelberg, Germany
| | - Takashi Hiiragi
- European Molecular Biology Laboratory (EMBL), 69117 Heidelberg, Germany; Institute for the Advanced Study of Human Biology (WPI-ASHBi), Kyoto University, 606-8501 Kyoto, Japan.
| |
Collapse
|
5
|
Russo L, Sladitschek HL, Neveu PA. Multi-layered regulation of neuroectoderm differentiation by retinoic acid in a primitive streak-like context. Stem Cell Reports 2022; 17:231-244. [PMID: 35063128 PMCID: PMC8828549 DOI: 10.1016/j.stemcr.2021.12.014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Revised: 12/15/2021] [Accepted: 12/16/2021] [Indexed: 12/13/2022] Open
Abstract
The formation of the primitive streak (PS) and the subsequent induction of neuroectoderm are hallmarks of gastrulation. Combining an in vitro reconstitution of this process based on mouse embryonic stem cells (mESCs) with a collection of knockouts in reporter mESC lines, we identified retinoic acid (RA) as a critical mediator of early neural induction triggered by TGFβ or Wnt signaling inhibition. Single-cell RNA sequencing analysis captured the temporal unfolding of cell type diversification, up to the emergence of somite and neural fates. In the absence of the RA-synthesizing enzyme Aldh1a2, a sensitive RA reporter revealed a hitherto unidentified residual RA signaling that specified neural fate. Genetic evidence showed that the RA-degrading enzyme Cyp26a1 protected PS-like cells from neural induction, even in the absence of TGFβ and Wnt antagonists. Overall, we characterized a multi-layered control of RA levels that regulates early neural differentiation in an in vitro PS-like system. In vitro reconstitution of neural induction by primitive streak-like cells Retinoic acid mediates neural induction triggered by TGFβ or Wnt signaling inhibition A sensitive activity reporter reveals Aldh1a2-independent retinoic acid signaling Cyp26a1 protects primitive streak-like cells from neural induction
Collapse
Affiliation(s)
- Luigi Russo
- Cell Biology and Biophysics Unit, European Molecular Biology Laboratory, 69117 Heidelberg, Germany; Joint PhD Degree from EMBL and Heidelberg University, Faculty of Biosciences, 69120 Heidelberg, Germany
| | - Hanna L Sladitschek
- Cell Biology and Biophysics Unit, European Molecular Biology Laboratory, 69117 Heidelberg, Germany
| | - Pierre A Neveu
- Cell Biology and Biophysics Unit, European Molecular Biology Laboratory, 69117 Heidelberg, Germany.
| |
Collapse
|
6
|
Świerczek-Lasek B, Dudka D, Bauer D, Czajkowski T, Ilach K, Streminska W, Kominek A, Piwocka K, Ciemerych MA, Archacka K. Comparison of Differentiation Pattern and WNT/SHH Signaling in Pluripotent Stem Cells Cultured under Different Conditions. Cells 2021; 10:cells10102743. [PMID: 34685722 PMCID: PMC8534321 DOI: 10.3390/cells10102743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2021] [Revised: 10/01/2021] [Accepted: 10/08/2021] [Indexed: 11/16/2022] Open
Abstract
Pluripotent stem cells (PSCs) are characterized by the ability to self-renew as well as undergo multidirectional differentiation. Culture conditions have a pivotal influence on differentiation pattern. In the current study, we compared the fate of mouse PSCs using two culture media: (1) chemically defined, free of animal reagents, and (2) standard one relying on the serum supplementation. Moreover, we assessed the influence of selected regulators (WNTs, SHH) on PSC differentiation. We showed that the differentiation pattern of PSCs cultured in both systems differed significantly: cells cultured in chemically defined medium preferentially underwent ectodermal conversion while their endo- and mesodermal differentiation was limited, contrary to cells cultured in serum-supplemented medium. More efficient ectodermal differentiation of PSCs cultured in chemically defined medium correlated with higher activity of SHH pathway while endodermal and mesodermal conversion of cells cultured in serum-supplemented medium with higher activity of WNT/JNK pathway. However, inhibition of either canonical or noncanonical WNT pathway resulted in the limitation of endo- and mesodermal conversion of PSCs. In addition, blocking WNT secretion led to the inhibition of PSC mesodermal differentiation, confirming the pivotal role of WNT signaling in this process. In contrast, SHH turned out to be an inducer of PSC ectodermal, not mesodermal differentiation.
Collapse
Affiliation(s)
- Barbara Świerczek-Lasek
- Department of Cytology, Institute of Developmental Biology and Biomedical Sciences, Faculty of Biology, University of Warsaw, 02-096 Warsaw, Poland; (B.Ś.-L.); (D.D.); (D.B.); (T.C.); (K.I.); (W.S.); (M.A.C.)
| | - Damian Dudka
- Department of Cytology, Institute of Developmental Biology and Biomedical Sciences, Faculty of Biology, University of Warsaw, 02-096 Warsaw, Poland; (B.Ś.-L.); (D.D.); (D.B.); (T.C.); (K.I.); (W.S.); (M.A.C.)
| | - Damian Bauer
- Department of Cytology, Institute of Developmental Biology and Biomedical Sciences, Faculty of Biology, University of Warsaw, 02-096 Warsaw, Poland; (B.Ś.-L.); (D.D.); (D.B.); (T.C.); (K.I.); (W.S.); (M.A.C.)
| | - Tomasz Czajkowski
- Department of Cytology, Institute of Developmental Biology and Biomedical Sciences, Faculty of Biology, University of Warsaw, 02-096 Warsaw, Poland; (B.Ś.-L.); (D.D.); (D.B.); (T.C.); (K.I.); (W.S.); (M.A.C.)
| | - Katarzyna Ilach
- Department of Cytology, Institute of Developmental Biology and Biomedical Sciences, Faculty of Biology, University of Warsaw, 02-096 Warsaw, Poland; (B.Ś.-L.); (D.D.); (D.B.); (T.C.); (K.I.); (W.S.); (M.A.C.)
| | - Władysława Streminska
- Department of Cytology, Institute of Developmental Biology and Biomedical Sciences, Faculty of Biology, University of Warsaw, 02-096 Warsaw, Poland; (B.Ś.-L.); (D.D.); (D.B.); (T.C.); (K.I.); (W.S.); (M.A.C.)
| | - Agata Kominek
- Laboratory of Cytometry, Nencki Institute of Experimental Biology, Polish Academy of Sciences, 02-093 Warsaw, Poland; (A.K.); (K.P.)
| | - Katarzyna Piwocka
- Laboratory of Cytometry, Nencki Institute of Experimental Biology, Polish Academy of Sciences, 02-093 Warsaw, Poland; (A.K.); (K.P.)
| | - Maria A. Ciemerych
- Department of Cytology, Institute of Developmental Biology and Biomedical Sciences, Faculty of Biology, University of Warsaw, 02-096 Warsaw, Poland; (B.Ś.-L.); (D.D.); (D.B.); (T.C.); (K.I.); (W.S.); (M.A.C.)
| | - Karolina Archacka
- Department of Cytology, Institute of Developmental Biology and Biomedical Sciences, Faculty of Biology, University of Warsaw, 02-096 Warsaw, Poland; (B.Ś.-L.); (D.D.); (D.B.); (T.C.); (K.I.); (W.S.); (M.A.C.)
- Correspondence: ; Tel.: +48-22-55-42-203
| |
Collapse
|
7
|
Abstract
During embryonic development, cells differentiate into a variety of distinct cell types and subtypes with diverse transcriptional profiles. To date, transcriptomic signatures of different cell lineages that arise during development have been only partially characterized. Here we used single-cell RNA-seq to perform transcriptomic analysis of over 20,000 cells disaggregated from the trunk region of zebrafish embryos at the 30 hpf stage. Transcriptional signatures of 27 different cell types and subtypes were identified and annotated during this analysis. This dataset will be a useful resource for many researchers in the fields of developmental and cellular biology and facilitate the understanding of molecular mechanisms that regulate cell lineage choices during development.
Collapse
Affiliation(s)
- Sanjeeva Metikala
- Division of Developmental Biology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, United States of America
- Department of Pathology and Cell Biology, USF Health Heart Institute, University of South Florida, Tampa, FL, United States of America
| | - Satish Casie Chetty
- Division of Developmental Biology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, United States of America
- Molecular and Developmental Biology Graduate Program, University of Cincinnati, Cincinnati, OH, United States of America
| | - Saulius Sumanas
- Division of Developmental Biology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, United States of America
- Department of Pathology and Cell Biology, USF Health Heart Institute, University of South Florida, Tampa, FL, United States of America
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, United States of America
- * E-mail:
| |
Collapse
|
8
|
Xu PF, Borges RM, Fillatre J, de Oliveira-Melo M, Cheng T, Thisse B, Thisse C. Construction of a mammalian embryo model from stem cells organized by a morphogen signalling centre. Nat Commun 2021; 12:3277. [PMID: 34078907 PMCID: PMC8172561 DOI: 10.1038/s41467-021-23653-4] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Accepted: 05/11/2021] [Indexed: 12/16/2022] Open
Abstract
Generating properly differentiated embryonic structures in vitro from pluripotent stem cells remains a challenge. Here we show that instruction of aggregates of mouse embryonic stem cells with an experimentally engineered morphogen signalling centre, that functions as an organizer, results in the development of embryo-like entities (embryoids). In situ hybridization, immunolabelling, cell tracking and transcriptomic analyses show that these embryoids form the three germ layers through a gastrulation process and that they exhibit a wide range of developmental structures, highly similar to neurula-stage mouse embryos. Embryoids are organized around an axial chordamesoderm, with a dorsal neural plate that displays histological properties similar to the murine embryo neuroepithelium and that folds into a neural tube patterned antero-posteriorly from the posterior midbrain to the tip of the tail. Lateral to the chordamesoderm, embryoids display somitic and intermediate mesoderm, with beating cardiac tissue anteriorly and formation of a vasculature network. Ventrally, embryoids differentiate a primitive gut tube, which is patterned both antero-posteriorly and dorso-ventrally. Altogether, embryoids provide an in vitro model of mammalian embryo that displays extensive development of germ layer derivatives and that promises to be a powerful tool for in vitro studies and disease modelling.
Collapse
Affiliation(s)
- Peng-Fei Xu
- Department of Cell Biology, University of Virginia, Charlottesville, VA, USA
- Institute of Genetics and Department of Genetics, School of Medicine, Zhejiang University, Hangzhou, China
| | | | - Jonathan Fillatre
- Department of Cell Biology, University of Virginia, Charlottesville, VA, USA
| | - Maraysa de Oliveira-Melo
- Department of Cell Biology, University of Virginia, Charlottesville, VA, USA
- Department of Cell Biology, State University of Campinas, Campinas, Brazil
| | - Tao Cheng
- Institute of Genetics and Department of Genetics, School of Medicine, Zhejiang University, Hangzhou, China
| | - Bernard Thisse
- Department of Cell Biology, University of Virginia, Charlottesville, VA, USA
| | - Christine Thisse
- Department of Cell Biology, University of Virginia, Charlottesville, VA, USA.
| |
Collapse
|
9
|
Czarkwiani A, Dylus DV, Carballo L, Oliveri P. FGF signalling plays similar roles in development and regeneration of the skeleton in the brittle star Amphiura filiformis. Development 2021; 148:dev180760. [PMID: 34042967 PMCID: PMC8180256 DOI: 10.1242/dev.180760] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Accepted: 04/13/2021] [Indexed: 12/16/2022]
Abstract
Regeneration as an adult developmental process is in many aspects similar to embryonic development. Although many studies point out similarities and differences, no large-scale, direct and functional comparative analyses between development and regeneration of a specific cell type or structure in one animal exist. Here, we use the brittle star Amphiura filiformis to characterise the role of the FGF signalling pathway during skeletal development in embryos and arm regeneration. In both processes, we find ligands expressed in ectodermal cells that flank underlying skeletal mesenchymal cells, which express the receptors. Perturbation of FGF signalling showed inhibited skeleton formation in both embryogenesis and regeneration, without affecting other key developmental processes. Differential transcriptome analysis finds mostly differentiation genes rather than transcription factors to be downregulated in both contexts. Moreover, comparative gene analysis allowed us to discover brittle star-specific differentiation genes. In conclusion, our results show that the FGF pathway is crucial for skeletogenesis in the brittle star, as in other deuterostomes, and provide evidence for the re-deployment of a developmental gene regulatory module during regeneration.
Collapse
Affiliation(s)
- Anna Czarkwiani
- Department of Genetics, Evolution and Environment, University College London, London WC1E 6BT, UK
| | - David V. Dylus
- Department of Genetics, Evolution and Environment, University College London, London WC1E 6BT, UK
- Centre for Mathematics, Physics and Engineering in the Life Sciences and Experimental Biology, University College London, London WC1E 6BT, UK
| | - Luisana Carballo
- Department of Genetics, Evolution and Environment, University College London, London WC1E 6BT, UK
| | - Paola Oliveri
- Department of Genetics, Evolution and Environment, University College London, London WC1E 6BT, UK
- Centre for Life's Origin and Evolution (CLOE), University College London, London WC1E 6BT, UK
| |
Collapse
|
10
|
Aprile D, Alessio N, Demirsoy IH, Squillaro T, Peluso G, Di Bernardo G, Galderisi U. MUSE Stem Cells Can Be Isolated from Stromal Compartment of Mouse Bone Marrow, Adipose Tissue, and Ear Connective Tissue: A Comparative Study of Their In Vitro Properties. Cells 2021; 10:761. [PMID: 33808472 PMCID: PMC8065981 DOI: 10.3390/cells10040761] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Revised: 03/25/2021] [Accepted: 03/29/2021] [Indexed: 01/10/2023] Open
Abstract
The cells present in the stromal compartment of many tissues are a heterogeneous population containing stem cells, progenitor cells, fibroblasts, and other stromal cells. A SSEA3(+) cell subpopulation isolated from human stromal compartments showed stem cell properties. These cells, known as multilineage-differentiating stress-enduring (MUSE) cells, are capable of resisting stress and possess an excellent ability to repair DNA damage. We isolated MUSE cells from different mouse stromal compartments, such as those present in bone marrow, subcutaneous white adipose tissue, and ear connective tissue. These cells showed overlapping in vitro biological properties. The mouse MUSE cells were positive for stemness markers such as SOX2, OCT3/4, and NANOG. They also expressed TERT, the catalytic telomerase subunit. The mouse MUSE cells showed spontaneous commitment to differentiation in meso/ecto/endodermal derivatives. The demonstration that multilineage stem cells can be isolated from an animal model, such as the mouse, could offer a valid alternative to the use of other stem cells for disease studies and envisage of cellular therapies.
Collapse
Affiliation(s)
- Domenico Aprile
- Department of Experimental Medicine, Luigi Vanvitelli Campania University, 80138 Naples, Italy; (D.A.); (N.A.); (I.H.D.); (T.S.); (G.D.B.)
| | - Nicola Alessio
- Department of Experimental Medicine, Luigi Vanvitelli Campania University, 80138 Naples, Italy; (D.A.); (N.A.); (I.H.D.); (T.S.); (G.D.B.)
| | - Ibrahim H. Demirsoy
- Department of Experimental Medicine, Luigi Vanvitelli Campania University, 80138 Naples, Italy; (D.A.); (N.A.); (I.H.D.); (T.S.); (G.D.B.)
| | - Tiziana Squillaro
- Department of Experimental Medicine, Luigi Vanvitelli Campania University, 80138 Naples, Italy; (D.A.); (N.A.); (I.H.D.); (T.S.); (G.D.B.)
| | | | - Giovanni Di Bernardo
- Department of Experimental Medicine, Luigi Vanvitelli Campania University, 80138 Naples, Italy; (D.A.); (N.A.); (I.H.D.); (T.S.); (G.D.B.)
- Center for Biotechnology, Sbarro Institute for Cancer Research and Molecular Medicine, Temple University, Philadelphia, PA 19122, USA
| | - Umberto Galderisi
- Department of Experimental Medicine, Luigi Vanvitelli Campania University, 80138 Naples, Italy; (D.A.); (N.A.); (I.H.D.); (T.S.); (G.D.B.)
- Center for Biotechnology, Sbarro Institute for Cancer Research and Molecular Medicine, Temple University, Philadelphia, PA 19122, USA
- Genome and Stem Cell Center (GENKOK), Erciyes University, 38280 Kayseri, Turkey
| |
Collapse
|
11
|
Kimura K, Tsukamoto M, Tanaka M, Kuwamura M, Ohtaka M, Nishimura K, Nakanishi M, Sugiura K, Hatoya S. Efficient Reprogramming of Canine Peripheral Blood Mononuclear Cells into Induced Pluripotent Stem Cells. Stem Cells Dev 2021; 30:79-90. [PMID: 33256572 DOI: 10.1089/scd.2020.0084] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Forced coexpression of the transcription factors Oct3/4, Klf4, Sox2, and c-Myc reprograms somatic cells into pluripotent stem cells (PSCs). Such induced PSCs (iPSCs) can generate any cell type of the adult body or indefinitely proliferate without losing their potential. Accordingly, iPSCs can serve as an unlimited cell source for the development of various disease models and regenerative therapies for animals and humans. Although canine peripheral blood mononuclear cells (PBMCs) can be easily obtained, they have a very low iPSC reprogramming efficiency. In this study, we determined the reprogramming efficiency of canine PBMCs under several conditions involving three types of media supplemented with small-molecule compounds. We found that canine iPSCs (ciPSCs) could be efficiently generated from PBMCs using N2B27 medium supplemented with leukemia inhibitory factor (LIF), basic fibroblast growth factor (bFGF), and a small-molecule cocktail (Y-27632, PD0325901, CHIR99021, A-83-01, Forskolin, and l-ascorbic acid). We generated five ciPSC lines that could be maintained in StemFit® medium supplemented with LIF. The SeVdp(KOSM)302L vectors were appropriately silenced in four ciPSC lines. Of the two lines characterized, both were positive for alkaline phosphatase activity and expressed pluripotency markers, including the Oct3/4, Sox2, and Nanog transcripts, as well as the octamer-binding transcription factor (OCT) 3/4 and NANOG proteins, and the SSEA-1 carbohydrate antigen. The ciPSCs could form embryoid bodies and differentiate into the three germ layers, as indicated by marker gene and protein expression. Furthermore, one ciPSC line formed teratomas comprising several tissues from every germ layer. Our ciPSC lines maintained a normal karyotype even after multiple passages. Moreover, our new reprogramming method was able to generate ciPSCs from multiple donor PBMCs. In conclusion, we developed an easy and efficient strategy for the generation of footprint-free ciPSCs from PBMCs. We believe that this strategy can be useful for disease modeling and regenerative medicine in the veterinary field.
Collapse
Affiliation(s)
- Kazuto Kimura
- Department of Advanced Pathobiology, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Izumisano, Osaka, Japan
| | - Masaya Tsukamoto
- Department of Advanced Pathobiology, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Izumisano, Osaka, Japan
| | - Miyuu Tanaka
- Department of Integrated Structural Biosciences, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Izumisano, Osaka, Japan
| | - Mitsuru Kuwamura
- Department of Integrated Structural Biosciences, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Izumisano, Osaka, Japan
| | | | - Ken Nishimura
- Laboratory of Gene Regulation, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Mahito Nakanishi
- TOKIWA-Bio, Inc., Tsukuba, Japan
- National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Japan
| | - Kikuya Sugiura
- Department of Advanced Pathobiology, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Izumisano, Osaka, Japan
| | - Shingo Hatoya
- Department of Advanced Pathobiology, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Izumisano, Osaka, Japan
| |
Collapse
|
12
|
Simon CS, Rahman S, Raina D, Schröter C, Hadjantonakis AK. Live Visualization of ERK Activity in the Mouse Blastocyst Reveals Lineage-Specific Signaling Dynamics. Dev Cell 2020; 55:341-353.e5. [PMID: 33091370 PMCID: PMC7658048 DOI: 10.1016/j.devcel.2020.09.030] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Revised: 06/05/2020] [Accepted: 09/28/2020] [Indexed: 01/16/2023]
Abstract
FGF/ERK signaling is crucial for the patterning and proliferation of cell lineages that comprise the mouse blastocyst. However, ERK signaling dynamics have never been directly visualized in live embryos. To address whether differential signaling is associated with particular cell fates and states, we generated a targeted mouse line expressing an ERK-kinase translocation reporter (KTR) that enables live quantification of ERK activity at single-cell resolution. 3D time-lapse imaging of this biosensor in embryos revealed spatially graded ERK activity in the trophectoderm prior to overt polar versus mural differentiation. Within the inner cell mass (ICM), all cells relayed FGF/ERK signals with varying durations and magnitude. Primitive endoderm cells displayed higher overall levels of ERK activity, while pluripotent epiblast cells exhibited lower basal activity with sporadic pulses. These results constitute a direct visualization of signaling events during mammalian pre-implantation development and reveal the existence of spatial and temporal lineage-specific dynamics.
Collapse
Affiliation(s)
- Claire S Simon
- Developmental Biology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Shahadat Rahman
- Developmental Biology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Dhruv Raina
- Department of Systemic Cell Biology, Max Planck Institute of Molecular Physiology, Otto-Hahn-Strasse 11, 44227 Dortmund, Germany
| | - Christian Schröter
- Department of Systemic Cell Biology, Max Planck Institute of Molecular Physiology, Otto-Hahn-Strasse 11, 44227 Dortmund, Germany
| | - Anna-Katerina Hadjantonakis
- Developmental Biology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA.
| |
Collapse
|
13
|
Skokan TD, Vale RD, McKinley KL. Cell Sorting in Hydra vulgaris Arises from Differing Capacities for Epithelialization between Cell Types. Curr Biol 2020; 30:3713-3723.e3. [PMID: 32795440 PMCID: PMC7541579 DOI: 10.1016/j.cub.2020.07.035] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Revised: 07/05/2020] [Accepted: 07/09/2020] [Indexed: 12/22/2022]
Abstract
Hydra vulgaris exhibits a remarkable capacity to reassemble its body plan from a disordered aggregate of cells. Reassembly begins by sorting two epithelial cell types, endoderm and ectoderm, into inner and outer layers, respectively. The cellular features and behaviors that distinguish ectodermal and endodermal lineages to drive sorting have not been fully elucidated. To dissect this process, we use micromanipulation to position single cells of diverse lineages on the surface of defined multicellular aggregates and monitor sorting outcomes by live imaging. Although sorting has previously been attributed to intrinsic differences between the epithelial lineages, we find that single cells of all lineages sort to the interior of ectodermal aggregates, including single ectodermal cells. This reveals that cells of the same lineage can adopt opposing positions when sorting as individuals or a collective. Ectodermal cell collectives adopt their position at the aggregate exterior by rapidly reforming an epithelium that engulfs cells adhered to its surface through a collective spreading behavior. In contrast, aggregated endodermal cells persistently lose epithelial features. These non-epithelialized aggregates, like isolated cells of all lineages, are adherent passengers for engulfment by the ectodermal epithelium. We find that collective spreading of the ectoderm and persistent de-epithelialization in the endoderm also arise during local wounding in Hydra, suggesting that Hydra's wound-healing and self-organization capabilities may employ similar mechanisms. Together, our data suggest that differing propensities for epithelialization can sort cell types into distinct compartments to build and restore complex tissue architecture.
Collapse
Affiliation(s)
- Taylor D Skokan
- Howard Hughes Medical Institute and Department of Cellular and Molecular Pharmacology, University of California, San Francisco, San Francisco, CA 94158, USA
| | - Ronald D Vale
- Howard Hughes Medical Institute and Department of Cellular and Molecular Pharmacology, University of California, San Francisco, San Francisco, CA 94158, USA; Howard Hughes Medical Institute Janelia Research Campus, Ashburn, VA 20147, USA.
| | - Kara L McKinley
- Howard Hughes Medical Institute and Department of Cellular and Molecular Pharmacology, University of California, San Francisco, San Francisco, CA 94158, USA.
| |
Collapse
|
14
|
Oh JN, Lee M, Choe GC, Lee DK, Choi KH, Kim SH, Jeong J, Lee CK. Identification of the Lineage Markers and Inhibition of DAB2 in In Vitro Fertilized Porcine Embryos. Int J Mol Sci 2020; 21:ijms21197275. [PMID: 33019677 PMCID: PMC7582820 DOI: 10.3390/ijms21197275] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Revised: 09/28/2020] [Accepted: 09/29/2020] [Indexed: 12/18/2022] Open
Abstract
Specification of embryonic lineages is an important question in the field of early development. Numerous studies analyzed the expression patterns of the candidate transcripts and proteins in humans and mice and clearly determined the markers of each lineage. To overcome the limitations of human and mouse embryos, the expression of the marker transcripts in each cell has been investigated using in vivo embryos in pigs. In vitro produced embryos are more accessible, can be rapidly processed with low cost. Therefore, we analyzed the characteristics of lineage markers and the effects of the DAB2 gene (trophectoderm marker) in in vitro fertilized porcine embryos. We investigated the expression levels of the marker genes during embryonic stages and distribution of the marker proteins was assayed in day 7 blastocysts. Then, the shRNA vectors were injected into the fertilized embryos and the differences in the marker transcripts were analyzed. Marker transcripts showed diverse patterns of expression, and each embryonic lineage could be identified with localization of marker proteins. In DAB2-shRNA vectors injected embryos, HNF4A and PDGFRA were upregulated. DAB2 protein level was lower in shRNA-injected embryos without significant differences. Our results will contribute to understanding of the mechanisms of embryonic lineage specification in pigs.
Collapse
Affiliation(s)
- Jong-Nam Oh
- Department of Agricultural Biotechnology, Animal Biotechnology Major and Research Institute for Agriculture and Life Sciences, Seoul National University, Seoul 08826, Korea; (J.-N.O.); (M.L.); (G.C.C.); (D.-K.L.); (K.-H.C.); (S.-H.K.); (J.J.)
| | - Mingyun Lee
- Department of Agricultural Biotechnology, Animal Biotechnology Major and Research Institute for Agriculture and Life Sciences, Seoul National University, Seoul 08826, Korea; (J.-N.O.); (M.L.); (G.C.C.); (D.-K.L.); (K.-H.C.); (S.-H.K.); (J.J.)
| | - Gyung Cheol Choe
- Department of Agricultural Biotechnology, Animal Biotechnology Major and Research Institute for Agriculture and Life Sciences, Seoul National University, Seoul 08826, Korea; (J.-N.O.); (M.L.); (G.C.C.); (D.-K.L.); (K.-H.C.); (S.-H.K.); (J.J.)
| | - Dong-Kyung Lee
- Department of Agricultural Biotechnology, Animal Biotechnology Major and Research Institute for Agriculture and Life Sciences, Seoul National University, Seoul 08826, Korea; (J.-N.O.); (M.L.); (G.C.C.); (D.-K.L.); (K.-H.C.); (S.-H.K.); (J.J.)
| | - Kwang-Hwan Choi
- Department of Agricultural Biotechnology, Animal Biotechnology Major and Research Institute for Agriculture and Life Sciences, Seoul National University, Seoul 08826, Korea; (J.-N.O.); (M.L.); (G.C.C.); (D.-K.L.); (K.-H.C.); (S.-H.K.); (J.J.)
| | - Seung-Hun Kim
- Department of Agricultural Biotechnology, Animal Biotechnology Major and Research Institute for Agriculture and Life Sciences, Seoul National University, Seoul 08826, Korea; (J.-N.O.); (M.L.); (G.C.C.); (D.-K.L.); (K.-H.C.); (S.-H.K.); (J.J.)
| | - Jinsol Jeong
- Department of Agricultural Biotechnology, Animal Biotechnology Major and Research Institute for Agriculture and Life Sciences, Seoul National University, Seoul 08826, Korea; (J.-N.O.); (M.L.); (G.C.C.); (D.-K.L.); (K.-H.C.); (S.-H.K.); (J.J.)
| | - Chang-Kyu Lee
- Department of Agricultural Biotechnology, Animal Biotechnology Major and Research Institute for Agriculture and Life Sciences, Seoul National University, Seoul 08826, Korea; (J.-N.O.); (M.L.); (G.C.C.); (D.-K.L.); (K.-H.C.); (S.-H.K.); (J.J.)
- Institute of Green Bio Science and Technology, Seoul National University, Pyeongchang 25354, Korea
- Correspondence:
| |
Collapse
|
15
|
Lim HYG, Alvarez YD, Gasnier M, Wang Y, Tetlak P, Bissiere S, Wang H, Biro M, Plachta N. Keratins are asymmetrically inherited fate determinants in the mammalian embryo. Nature 2020; 585:404-409. [PMID: 32848249 DOI: 10.1038/s41586-020-2647-4] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Accepted: 07/30/2020] [Indexed: 11/08/2022]
Abstract
To implant in the uterus, the mammalian embryo first specifies two cell lineages: the pluripotent inner cell mass that forms the fetus, and the outer trophectoderm layer that forms the placenta1. In many organisms, asymmetrically inherited fate determinants drive lineage specification2, but this is not thought to be the case during early mammalian development. Here we show that intermediate filaments assembled by keratins function as asymmetrically inherited fate determinants in the mammalian embryo. Unlike F-actin or microtubules, keratins are the first major components of the cytoskeleton that display prominent cell-to-cell variability, triggered by heterogeneities in the BAF chromatin-remodelling complex. Live-embryo imaging shows that keratins become asymmetrically inherited by outer daughter cells during cell division, where they stabilize the cortex to promote apical polarization and YAP-dependent expression of CDX2, thereby specifying the first trophectoderm cells of the embryo. Together, our data reveal a mechanism by which cell-to-cell heterogeneities that appear before the segregation of the trophectoderm and the inner cell mass influence lineage fate, via differential keratin regulation, and identify an early function for intermediate filaments in development.
Collapse
Affiliation(s)
- Hui Yi Grace Lim
- Institute of Molecular and Cell Biology, ASTAR, Singapore, Singapore
| | - Yanina D Alvarez
- Institute of Molecular and Cell Biology, ASTAR, Singapore, Singapore
| | - Maxime Gasnier
- Institute of Molecular and Cell Biology, ASTAR, Singapore, Singapore
| | - Yiming Wang
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Science, Beijing, China
| | - Piotr Tetlak
- Institute of Molecular and Cell Biology, ASTAR, Singapore, Singapore
| | | | - Hongmei Wang
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Science, Beijing, China
| | - Maté Biro
- EMBL Australia, Single Molecule Science Node, School of Medical Sciences, University of New South Wales, Sydney, New South Wales, Australia
| | - Nicolas Plachta
- Institute of Molecular and Cell Biology, ASTAR, Singapore, Singapore.
- Department of Cell and Developmental Biology and Institute for Regenerative Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.
| |
Collapse
|
16
|
Perillo M, Oulhen N, Foster S, Spurrell M, Calestani C, Wessel G. Regulation of dynamic pigment cell states at single-cell resolution. eLife 2020; 9:e60388. [PMID: 32812865 PMCID: PMC7455242 DOI: 10.7554/elife.60388] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Accepted: 08/15/2020] [Indexed: 12/12/2022] Open
Abstract
Cells bearing pigment have diverse roles and are often under strict evolutionary selection. Here, we explore the regulation of pigmented cells in the purple sea urchin Strongylocentrotus purpuratus, an emerging model for diverse pigment function. We took advantage of single cell RNA-seq (scRNAseq) technology and discovered that pigment cells in the embryo segregated into two distinct populations, a mitotic cluster and a post-mitotic cluster. Gcm is essential for expression of several genes important for pigment function, but is only transiently expressed in these cells. We discovered unique genes expressed by pigment cells and test their expression with double fluorescence in situ hybridization. These genes include new members of the fmo family that are expressed selectively in pigment cells of the embryonic and in the coelomic cells of the adult - both cell-types having immune functions. Overall, this study identifies nodes of molecular intersection ripe for change by selective evolutionary pressures.
Collapse
Affiliation(s)
- Margherita Perillo
- Department of Molecular and Cellular Biology Division of Biology and Medicine Brown UniversityProvidenceUnited States
| | - Nathalie Oulhen
- Department of Molecular and Cellular Biology Division of Biology and Medicine Brown UniversityProvidenceUnited States
| | - Stephany Foster
- Department of Molecular and Cellular Biology Division of Biology and Medicine Brown UniversityProvidenceUnited States
| | - Maxwell Spurrell
- Department of Molecular and Cellular Biology Division of Biology and Medicine Brown UniversityProvidenceUnited States
| | | | - Gary Wessel
- Department of Molecular and Cellular Biology Division of Biology and Medicine Brown UniversityProvidenceUnited States
| |
Collapse
|
17
|
Kohri N, Akizawa H, Iisaka S, Bai H, Takahashi M, Kawahara M. The role of RHOA signaling in trophectoderm cell-fate decision in cattle. Biochem Biophys Res Commun 2020; 528:713-718. [PMID: 32513530 DOI: 10.1016/j.bbrc.2020.05.210] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Accepted: 05/28/2020] [Indexed: 11/18/2022]
Abstract
Mammalian blastocysts are composed of two distinct cell lineages, namely the inner cell mass (ICM) and trophectoderm (TE). TE cells that give rise to the embryonic placenta are marked by an exclusive expression of the key determinant transcription factor, CDX2. Although Hippo signaling pathway is known to be responsible for this TE-specific expression of CDX2, the upstream regulator of this pathway in mammalian embryos is still controversial. In the present study, the involvement of the small molecular G protein, RHOA, in TE cell-fate decision in cattle was investigated. Inhibition of RHOA by the specific inhibitor, C3 transferase (C3), severely impaired the blastocyst formation. Further, C3 treatment significantly decreased the number of blastomeres with nuclearized YAP1, the prominent effector of Hippo pathway. An artificial isolation of ICM cells from blastocysts followed by the continuing culture to regenerate TE cells was conducted and showed that TE re-emergence from the isolated ICM is governed by Hippo pathway and suppressed by C3 treatment like that observed in developing embryos. Finally, the long-term exposure to C3 suggests the presence of alternative regulators of CDX2 expression other than RHOA signaling because there were still CDX2-positive cells after C3 treatment. These results demonstrated that RHOA signaling plays a significant role in TE cell-fate decision by regulating Hippo pathway in cattle.
Collapse
Affiliation(s)
- Nanami Kohri
- Laboratory of Animal Genetics and Reproduction, Research Faculty of Agriculture, Hokkaido University, Kita-ku, Kita 9, Nishi 9, Sapporo, 060-8589, Japan.
| | - Hiroki Akizawa
- Laboratory of Animal Genetics and Reproduction, Research Faculty of Agriculture, Hokkaido University, Kita-ku, Kita 9, Nishi 9, Sapporo, 060-8589, Japan.
| | - Sakie Iisaka
- Laboratory of Animal Genetics and Reproduction, Research Faculty of Agriculture, Hokkaido University, Kita-ku, Kita 9, Nishi 9, Sapporo, 060-8589, Japan.
| | - Hanako Bai
- Laboratory of Animal Genetics and Reproduction, Research Faculty of Agriculture, Hokkaido University, Kita-ku, Kita 9, Nishi 9, Sapporo, 060-8589, Japan.
| | - Masashi Takahashi
- Laboratory of Animal Genetics and Reproduction, Research Faculty of Agriculture, Hokkaido University, Kita-ku, Kita 9, Nishi 9, Sapporo, 060-8589, Japan.
| | - Manabu Kawahara
- Laboratory of Animal Genetics and Reproduction, Research Faculty of Agriculture, Hokkaido University, Kita-ku, Kita 9, Nishi 9, Sapporo, 060-8589, Japan.
| |
Collapse
|
18
|
Romanov RA, Tretiakov EO, Kastriti ME, Zupancic M, Häring M, Korchynska S, Popadin K, Benevento M, Rebernik P, Lallemend F, Nishimori K, Clotman F, Andrews WD, Parnavelas JG, Farlik M, Bock C, Adameyko I, Hökfelt T, Keimpema E, Harkany T. Molecular design of hypothalamus development. Nature 2020; 582:246-252. [PMID: 32499648 PMCID: PMC7292733 DOI: 10.1038/s41586-020-2266-0] [Citation(s) in RCA: 78] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2019] [Accepted: 03/05/2020] [Indexed: 12/21/2022]
Abstract
A wealth of specialized neuroendocrine command systems intercalated within the hypothalamus control the most fundamental physiological needs in vertebrates1,2. Nevertheless, we lack a developmental blueprint that integrates the molecular determinants of neuronal and glial diversity along temporal and spatial scales of hypothalamus development3. Here we combine single-cell RNA sequencing of 51,199 mouse cells of ectodermal origin, gene regulatory network (GRN) screens in conjunction with genome-wide association study-based disease phenotyping, and genetic lineage reconstruction to show that nine glial and thirty-three neuronal subtypes are generated by mid-gestation under the control of distinct GRNs. Combinatorial molecular codes that arise from neurotransmitters, neuropeptides and transcription factors are minimally required to decode the taxonomical hierarchy of hypothalamic neurons. The differentiation of γ-aminobutyric acid (GABA) and dopamine neurons, but not glutamate neurons, relies on quasi-stable intermediate states, with a pool of GABA progenitors giving rise to dopamine cells4. We found an unexpected abundance of chemotropic proliferation and guidance cues that are commonly implicated in dorsal (cortical) patterning5 in the hypothalamus. In particular, loss of SLIT-ROBO signalling impaired both the production and positioning of periventricular dopamine neurons. Overall, we identify molecular principles that shape the developmental architecture of the hypothalamus and show how neuronal heterogeneity is transformed into a multimodal neural unit to provide virtually infinite adaptive potential throughout life.
Collapse
Affiliation(s)
- Roman A. Romanov
- Department of Molecular Neurosciences, Center for Brain Research,
Medical University of Vienna, Vienna, Austria
- Department of Neuroscience, Biomedicum D7, Karolinska Institutet,
Solna, Sweden
| | - Evgenii O. Tretiakov
- Department of Molecular Neurosciences, Center for Brain Research,
Medical University of Vienna, Vienna, Austria
| | - Maria Eleni Kastriti
- Department of Molecular Neurosciences, Center for Brain Research,
Medical University of Vienna, Vienna, Austria
- Department of Physiology and Pharmacology, Biomedicum D6, Karolinska
Institutet, Solna, Sweden
| | - Maja Zupancic
- Department of Molecular Neurosciences, Center for Brain Research,
Medical University of Vienna, Vienna, Austria
| | - Martin Häring
- Department of Molecular Neurosciences, Center for Brain Research,
Medical University of Vienna, Vienna, Austria
| | - Solomiia Korchynska
- Department of Molecular Neurosciences, Center for Brain Research,
Medical University of Vienna, Vienna, Austria
| | - Konstantin Popadin
- Human Genomics of Infection and Immunity, School of Life Sciences,
Ecole Polytechnique Federale de Lausanne, Lausanne, Switzerland
| | - Marco Benevento
- Department of Molecular Neurosciences, Center for Brain Research,
Medical University of Vienna, Vienna, Austria
| | - Patrick Rebernik
- Department of Molecular Neurosciences, Center for Brain Research,
Medical University of Vienna, Vienna, Austria
| | - Francois Lallemend
- Department of Neuroscience, Biomedicum D7, Karolinska Institutet,
Solna, Sweden
| | - Katsuhiko Nishimori
- Deptartment of Obesity and Internal Inflammation, Fukushima Medical
University, Fukushima City, Japan
| | - Frédéric Clotman
- Laboratory of Neural Differentiation, Institute of Neuroscience,
Université Catholique de Louvain, Brussels, Belgium
| | - William D. Andrews
- Department of Cell and Developmental Biology, University College
London, London, United Kingdom
| | - John G. Parnavelas
- Department of Cell and Developmental Biology, University College
London, London, United Kingdom
| | - Matthias Farlik
- CeMM Research Center for Molecular Medicine of the Austrian Academy
of Sciences, Vienna, Austria
- Department of Dermatology, Medical University of Vienna, Vienna,
Austria
| | - Christoph Bock
- CeMM Research Center for Molecular Medicine of the Austrian Academy
of Sciences, Vienna, Austria
- Department of Laboratory Medicine, Medical University of Vienna,
Vienna, Austria
| | - Igor Adameyko
- Department of Molecular Neurosciences, Center for Brain Research,
Medical University of Vienna, Vienna, Austria
- Department of Physiology and Pharmacology, Biomedicum D6, Karolinska
Institutet, Solna, Sweden
| | - Tomas Hökfelt
- Department of Neuroscience, Biomedicum D7, Karolinska Institutet,
Solna, Sweden
| | - Erik Keimpema
- Department of Molecular Neurosciences, Center for Brain Research,
Medical University of Vienna, Vienna, Austria
| | - Tibor Harkany
- Department of Molecular Neurosciences, Center for Brain Research,
Medical University of Vienna, Vienna, Austria
- Department of Neuroscience, Biomedicum D7, Karolinska Institutet,
Solna, Sweden
| |
Collapse
|
19
|
Desai D, Khanna A, Pethe P. Inhibition of RING1B alters lineage specificity in human embryonic stem cells. Cell Biol Int 2020; 44:1299-1311. [PMID: 32068319 DOI: 10.1002/cbin.11325] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Accepted: 02/16/2020] [Indexed: 02/05/2023]
Abstract
Polycomb group (PcG) proteins are histone modifiers which are known to perform transcriptional repression and have been shown to be critical during murine embryonic development. PcGs are broadly characterized into polycomb repressive complex 1 (PRC1) and 2 and (PRC2). RING1B, core catalytic unit of PRC1 performs H2AK119 monoubiquitination leading to transcriptional repression. We used human embryonic stem cell (hESC) line to study the fate of pluripotent stem cells (PSCs) under inhibition of RING1B, as its role in human development is still to be completely explored. Embryoid bodies (EBs) were generated to differentiate hESCs using hanging drop method. PRT4165 (synthetic RING1B catalytic activity inhibitor) was added to undifferentiated and differentiated cells for 24 h. When we inhibited RING1B in undifferentiated cells, OCT4 levels remained unchanged indicating RING1B does not regulate pluripotency. The drug when added to differentiated cells led to decrease in the levels of RING1B, BMI1, and H2AK119ub1. Interestingly, we also report that the differentiated cells show an increased expression of neuroectodermal markers: SOX1 and PAX6 as well as expression of other neuroectodermal markers such as TUJ1, FOXG1, and NCAM. However, there was reduction in expression of endodermal (SOX17 and FOXA2) mesodermal marker BRACHYURY and TBX5 in treated EBs compared with control EBs. In summary, alteration of RING1B catalytic activity in hESCs during differentiation promotes neuroectodermal differentiation thus, we demonstrate critical role of RING1B in regulating neural differentiation. The strategy of inhibiting RING1B could be used to direct PSCs towards early neuronal fate.
Collapse
Affiliation(s)
- Divya Desai
- Department of Biological Sciences, NMIMS Sunandan Divatia School of Science, NMIMS (deemed to-be) University, Mumbai, 400056, India
| | - Aparna Khanna
- Department of Biological Sciences, NMIMS Sunandan Divatia School of Science, NMIMS (deemed to-be) University, Mumbai, 400056, India
| | - Prasad Pethe
- Symbiosis Centre for Stem Cell Research (SCSCR), Symbiosis International University, Pune, 412115, India
| |
Collapse
|
20
|
Okubo T, Hayashi R, Shibata S, Kudo Y, Ishikawa Y, Inoue S, Kobayashi Y, Honda A, Honma Y, Kawasaki S, Nishida K. Generation and validation of a PITX2-EGFP reporter line of human induced pluripotent stem cells enables isolation of periocular mesenchymal cells. J Biol Chem 2020; 295:3456-3465. [PMID: 32034090 PMCID: PMC7076207 DOI: 10.1074/jbc.ra119.010713] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2019] [Revised: 02/05/2020] [Indexed: 11/06/2022] Open
Abstract
PITX2 (Paired-like homeodomain transcription factor 2) plays important roles in asymmetric development of the internal organs and symmetric development of eye tissues. During eye development, cranial neural crest cells migrate from the neural tube and form the periocular mesenchyme (POM). POM cells differentiate into several ocular cell types, such as corneal endothelial cells, keratocytes, and some ocular mesenchymal cells. In this study, we used transcription activator-like effector nuclease technology to establish a human induced pluripotent stem cell (hiPSC) line expressing a fluorescent reporter gene from the PITX2 promoter. Using homologous recombination, we heterozygously inserted a PITX2-IRES2-EGFP sequence downstream of the stop codon in exon 8 of PITX2 Cellular pluripotency was monitored with alkaline phosphatase and immunofluorescence staining of pluripotency markers, and the hiPSC line formed normal self-formed ectodermal autonomous multizones. Using a combination of previously reported methods, we induced PITX2 in the hiPSC line and observed simultaneous EGFP and PITX2 expression, as indicated by immunoblotting and immunofluorescence staining. PITX2 mRNA levels were increased in EGFP-positive cells, which were collected by cell sorting, and marker gene expression analysis of EGFP-positive cells induced in self-formed ectodermal autonomous multizones revealed that they were genuine POM cells. Moreover, after 2 days of culture, EGFP-positive cells expressed the PITX2 protein, which co-localized with forkhead box C1 (FOXC1) protein in the nucleus. We anticipate that the PITX2-EGFP hiPSC reporter cell line established and validated here can be utilized to isolate POM cells and to analyze PITX2 expression during POM cell induction.
Collapse
Affiliation(s)
- Toru Okubo
- Department of Stem Cells and Applied Medicine, Osaka University Graduate School of Medicine, Suita, Osaka 565-0871, Japan; Basic Research Development Division, Rohto Pharmaceutical Co., Ltd., Osaka 544-8666, Japan
| | - Ryuhei Hayashi
- Department of Stem Cells and Applied Medicine, Osaka University Graduate School of Medicine, Suita, Osaka 565-0871, Japan; Department of Ophthalmology, Graduate School of Medicine, Osaka University, Suita, Osaka 565-0871, Japan.
| | - Shun Shibata
- Department of Stem Cells and Applied Medicine, Osaka University Graduate School of Medicine, Suita, Osaka 565-0871, Japan; Basic Research Development Division, Rohto Pharmaceutical Co., Ltd., Osaka 544-8666, Japan
| | - Yuji Kudo
- Department of Stem Cells and Applied Medicine, Osaka University Graduate School of Medicine, Suita, Osaka 565-0871, Japan; Basic Research Development Division, Rohto Pharmaceutical Co., Ltd., Osaka 544-8666, Japan
| | - Yuki Ishikawa
- Department of Ophthalmology, Graduate School of Medicine, Osaka University, Suita, Osaka 565-0871, Japan
| | - Saki Inoue
- Department of Ophthalmology, Graduate School of Medicine, Osaka University, Suita, Osaka 565-0871, Japan
| | - Yuki Kobayashi
- Department of Ophthalmology, Graduate School of Medicine, Osaka University, Suita, Osaka 565-0871, Japan
| | - Ai Honda
- Department of Ophthalmology, Graduate School of Medicine, Osaka University, Suita, Osaka 565-0871, Japan
| | - Yoichi Honma
- Department of Stem Cells and Applied Medicine, Osaka University Graduate School of Medicine, Suita, Osaka 565-0871, Japan; Basic Research Development Division, Rohto Pharmaceutical Co., Ltd., Osaka 544-8666, Japan
| | - Satoshi Kawasaki
- Department of Ophthalmology, Graduate School of Medicine, Osaka University, Suita, Osaka 565-0871, Japan
| | - Kohji Nishida
- Department of Ophthalmology, Graduate School of Medicine, Osaka University, Suita, Osaka 565-0871, Japan; Integrated Frontier Research for Medical Science Division, Institute for Open and Transdisciplinary Research Initiatives, Osaka University, Suita, Osaka 565-0871, Japan
| |
Collapse
|
21
|
Sharir A, Marangoni P, Zilionis R, Wan M, Wald T, Hu JK, Kawaguchi K, Castillo-Azofeifa D, Epstein L, Harrington K, Pagella P, Mitsiadis T, Siebel CW, Klein AM, Klein OD. A large pool of actively cycling progenitors orchestrates self-renewal and injury repair of an ectodermal appendage. Nat Cell Biol 2019; 21:1102-1112. [PMID: 31481792 PMCID: PMC6935352 DOI: 10.1038/s41556-019-0378-2] [Citation(s) in RCA: 59] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2018] [Accepted: 07/23/2019] [Indexed: 02/06/2023]
Abstract
The classical model of tissue renewal posits that small numbers of quiescent stem cells (SCs) give rise to proliferating transit-amplifying cells before terminal differentiation. However, many organs house pools of SCs with proliferative and differentiation potentials that diverge from this template. Resolving SC identity and organization is therefore central to understanding tissue renewal. Here, using a combination of single-cell RNA sequencing (scRNA-seq), mouse genetics and tissue injury approaches, we uncover cellular hierarchies and mechanisms that underlie the maintenance and repair of the continuously growing mouse incisor. Our results reveal that, during homeostasis, a group of actively cycling epithelial progenitors generates enamel-producing ameloblasts and adjacent layers of non-ameloblast cells. After injury, tissue repair was achieved through transient increases in progenitor-cell proliferation and through direct conversion of Notch1-expressing cells to ameloblasts. We elucidate epithelial SC identity, position and function, providing a mechanistic basis for the homeostasis and repair of a fast-turnover ectodermal appendage.
Collapse
Affiliation(s)
- Amnon Sharir
- Program in Craniofacial Biology and Department of Orofacial Sciences, University of California, San Francisco, CA, USA
| | - Pauline Marangoni
- Program in Craniofacial Biology and Department of Orofacial Sciences, University of California, San Francisco, CA, USA
| | - Rapolas Zilionis
- Department of Systems Biology, Harvard Medical School, Boston, MA, USA
- Institute of Biotechnology, Life Sciences Center, Vilnius University, Vilnius, Lithuania
| | - Mian Wan
- Program in Craniofacial Biology and Department of Orofacial Sciences, University of California, San Francisco, CA, USA
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases and Department of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Tomas Wald
- Program in Craniofacial Biology and Department of Orofacial Sciences, University of California, San Francisco, CA, USA
| | - Jimmy K Hu
- Program in Craniofacial Biology and Department of Orofacial Sciences, University of California, San Francisco, CA, USA
| | - Kyogo Kawaguchi
- Department of Systems Biology, Harvard Medical School, Boston, MA, USA
- Universal Biology Institute, The University of Tokyo, Tokyo, Japan
| | - David Castillo-Azofeifa
- Program in Craniofacial Biology and Department of Orofacial Sciences, University of California, San Francisco, CA, USA
| | - Leo Epstein
- Bioinformatics and Computational Biology Program, University of Idaho, Moscow, ID, USA
| | - Kyle Harrington
- Bioinformatics and Computational Biology Program, University of Idaho, Moscow, ID, USA
- Virtual Technology and Design, University of Idaho, Moscow, ID, USA
| | - Pierfrancesco Pagella
- Orofacial Development and Regeneration, Institute of Oral Biology, Centre of Dental Medicine, University of Zurich, Zurich, Switzerland
| | - Thimios Mitsiadis
- Orofacial Development and Regeneration, Institute of Oral Biology, Centre of Dental Medicine, University of Zurich, Zurich, Switzerland
| | - Christian W Siebel
- Department of Discovery Oncology, Genentech, South San Francisco, CA, USA
| | - Allon M Klein
- Department of Systems Biology, Harvard Medical School, Boston, MA, USA.
| | - Ophir D Klein
- Program in Craniofacial Biology and Department of Orofacial Sciences, University of California, San Francisco, CA, USA.
- Department of Pediatrics and Institute for Human Genetics, University of California, San Francisco, CA, USA.
| |
Collapse
|
22
|
Nasr Esfahani S, Shao Y, Resto Irizarry AM, Li Z, Xue X, Gumucio DL, Fu J. Microengineered human amniotic ectoderm tissue array for high-content developmental phenotyping. Biomaterials 2019; 216:119244. [PMID: 31207406 PMCID: PMC6658735 DOI: 10.1016/j.biomaterials.2019.119244] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2019] [Accepted: 06/01/2019] [Indexed: 02/09/2023]
Abstract
During early post-implantation human embryogenesis, the epiblast (EPI) within the blastocyst polarizes to generate a cyst with a central lumen. Cells at the uterine pole of the EPI cyst then undergo differentiation to form the amniotic ectoderm (AM), a tissue essential for further embryonic development. While the causes of early pregnancy failure are complex, improper lumenogenesis or amniogenesis of the EPI represent possible contributing factors. Here we report a novel AM microtissue array platform that allows quantitative phenotyping of lumenogenesis and amniogenesis of the EPI and demonstrate its potential application for embryonic toxicity profiling. Specifically, a human pluripotent stem cell (hPSC)-based amniogenic differentiation protocol was developed using a two-step micropatterning technique to generate a regular AM microtissue array with defined tissue sizes. A computer-assisted analysis pipeline was developed to automatically process imaging data and quantify morphological and biological features of AM microtissues. Analysis of the effects of cell density, cyst size and culture conditions revealed a clear connection between cyst size and amniogenesis of hPSC. Using this platform, we demonstrated that pharmacological inhibition of ROCK signaling, an essential mechanotransductive pathway, suppressed lumenogenesis but did not perturb amniogenic differentiation of hPSC, suggesting uncoupled regulatory mechanisms for AM morphogenesis vs. cytodifferentiation. The AM microtissue array was further applied to screen a panel of clinically relevant drugs, which successfully detected their differential teratogenecity. This work provides a technological platform for toxicological screening of clinically relevant drugs for their effects on lumenogenesis and amniogenesis during early human peri-implantation development, processes that have been previously inaccessible to study.
Collapse
Affiliation(s)
- Sajedeh Nasr Esfahani
- Department of Mechanical Engineering, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Yue Shao
- Department of Mechanical Engineering, University of Michigan, Ann Arbor, MI, 48109, USA; Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, 02142, USA
| | | | - Zida Li
- Department of Mechanical Engineering, University of Michigan, Ann Arbor, MI, 48109, USA; Department of Biomedical Engineering, School of Medicine, Shenzhen University, Shenzhen, 518060, China
| | - Xufeng Xue
- Department of Mechanical Engineering, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Deborah L Gumucio
- Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI, 48109, USA
| | - Jianping Fu
- Department of Mechanical Engineering, University of Michigan, Ann Arbor, MI, 48109, USA; Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI, 48109, USA; Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI, 48109, USA.
| |
Collapse
|
23
|
Ferretti E, Hadjantonakis AK. Mesoderm specification and diversification: from single cells to emergent tissues. Curr Opin Cell Biol 2019; 61:110-116. [PMID: 31476530 DOI: 10.1016/j.ceb.2019.07.012] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Revised: 07/16/2019] [Accepted: 07/30/2019] [Indexed: 12/18/2022]
Abstract
The three germ layers - mesoderm, endoderm and ectoderm - constituting the cellular blueprint for the tissues and organs that will form during embryonic development, are specified at gastrulation. Cells of mesodermal origin are the most abundant in the human body, representing a great variety of cell types, including the musculoskeletal system (bone, cartilage and muscle), cardiovascular system (heart, blood and blood vessels), as well as the connective tissues found throughout our bodies. A long-standing question pertains how this panoply of mesodermal cell types arises in a stereotypical fashion in time and space. This review discusses the events associated with mesoderm specification, highlighting the reconstruction of putative developmental trajectories facilitated by recent single-cell 'omic' data. We will also discuss the potential of emergent organoid systems to emulate and interrogate the dynamics of lineage specification at cellular resolution.
Collapse
Affiliation(s)
- Elisabetta Ferretti
- The Novo Nordisk Foundation Center for Stem Cell Biology, University of Copenhagen, DK-2200 Copenhagen, Denmark.
| | - Anna-Katerina Hadjantonakis
- Developmental Biology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, USA.
| |
Collapse
|
24
|
Kuang YL, Munoz A, Nalula G, Santostefano KE, Sanghez V, Sanchez G, Terada N, Mattis AN, Iacovino M, Iribarren C, Krauss RM, Medina MW. Evaluation of commonly used ectoderm markers in iPSC trilineage differentiation. Stem Cell Res 2019; 37:101434. [PMID: 30999275 PMCID: PMC6570500 DOI: 10.1016/j.scr.2019.101434] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Revised: 03/27/2019] [Accepted: 04/08/2019] [Indexed: 01/08/2023] Open
Abstract
Patient-derived induced pluripotent stem cells (iPSCs) have become a promising resource for exploring genetics of complex diseases, discovering new drugs, and advancing regenerative medicine. Increasingly, laboratories are creating their own banks of iPSCs derived from diverse donors. However, there are not yet standardized guidelines for qualifying these cell lines, i.e., distinguishing between bona fide human iPSCs, somatic cells, and imperfectly reprogrammed cells. Here, we report the establishment of a panel of 30 iPSCs from CD34+ peripheral blood mononuclear cells, of which 10 were further differentiated in vitro into all three germ layers. We characterized these different cell types with commonly used pluripotent and lineage specific markers, and showed that NES, TUBB3, and OTX2 cannot be reliably used as ectoderm differentiation markers. Our work highlights the importance of marker selection in iPSC authentication, and the need for the field to establish definitive standard assays.
Collapse
Affiliation(s)
- Yu-Lin Kuang
- Children's Hospital Oakland Research Institute, 5700 Martin Luther King Jr Way, Oakland, CA 94609, USA
| | - Antonio Munoz
- Children's Hospital Oakland Research Institute, 5700 Martin Luther King Jr Way, Oakland, CA 94609, USA
| | - Gilbert Nalula
- Children's Hospital Oakland Research Institute, 5700 Martin Luther King Jr Way, Oakland, CA 94609, USA
| | - Katherine E Santostefano
- University of Florida College of Medicine, 1395 Center Drive Box 100275, Gainesville, FL 32610, USA
| | - Valentina Sanghez
- Los Angeles Biomedical Research Institute at Harbor-UCLA Medical Center, 1123 W Carson Street, Torrance, CA 90502, USA
| | - Gabriela Sanchez
- Kaiser Permanente Division of Research, 2000 Broadway, Oakland, CA 94612, USA
| | - Naohiro Terada
- University of Florida College of Medicine, 1395 Center Drive Box 100275, Gainesville, FL 32610, USA
| | - Aras N Mattis
- Department of Pathology, University of California San Francisco, 513 Parnassus Avenue, San Francisco, CA 94143, USA
| | - Michelina Iacovino
- Los Angeles Biomedical Research Institute at Harbor-UCLA Medical Center, 1123 W Carson Street, Torrance, CA 90502, USA
| | - Carlos Iribarren
- Kaiser Permanente Division of Research, 2000 Broadway, Oakland, CA 94612, USA
| | - Ronald M Krauss
- Children's Hospital Oakland Research Institute, 5700 Martin Luther King Jr Way, Oakland, CA 94609, USA
| | - Marisa W Medina
- Children's Hospital Oakland Research Institute, 5700 Martin Luther King Jr Way, Oakland, CA 94609, USA.
| |
Collapse
|
25
|
Chen YC, Liao BK, Lu YF, Liu YH, Hsieh FC, Hwang PP, Hwang SPL. Zebrafish Klf4 maintains the ionocyte progenitor population by regulating epidermal stem cell proliferation and lateral inhibition. PLoS Genet 2019; 15:e1008058. [PMID: 30933982 PMCID: PMC6459544 DOI: 10.1371/journal.pgen.1008058] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Revised: 04/11/2019] [Accepted: 02/28/2019] [Indexed: 01/06/2023] Open
Abstract
In the skin and gill epidermis of fish, ionocytes develop alongside keratinocytes and maintain body fluid ionic homeostasis that is essential for adaptation to environmental fluctuations. It is known that ionocyte progenitors in zebrafish embryos are specified from p63+ epidermal stem cells through a patterning process involving DeltaC (Dlc)-Notch-mediated lateral inhibition, which selects scattered dlc+ cells into the ionocyte progenitor fate. However, mechanisms by which the ionocyte progenitor population is modulated remain unclear. Krüppel-like factor 4 (Klf4) transcription factor was previously implicated in the terminal differentiation of mammalian skin epidermis and is known for its bifunctional regulation of cell proliferation in a tissue context-dependent manner. Here, we report novel roles for zebrafish Klf4 in the ventral ectoderm during embryonic skin development. We found that Klf4 was expressed in p63+ epidermal stem cells of the ventral ectoderm from 90% epiboly onward. Knockdown or knockout of klf4 expression reduced the proliferation rate of p63+ stem cells, resulting in decreased numbers of p63+ stem cells, dlc-p63+ keratinocyte progenitors and dlc+ p63+ ionocyte progenitor cells. These reductions subsequently led to diminished keratinocyte and ionocyte densities and resulted from upregulation of the well-known cell cycle regulators, p53 and cdkn1a/p21. Moreover, mutation analyses of the KLF motif in the dlc promoter, combined with VP16-klf4 or engrailed-klf4 mRNA overexpression analyses, showed that Klf4 can bind the dlc promoter and modulate lateral inhibition by directly repressing dlc expression. This idea was further supported by observing the lateral inhibition outcomes in klf4-overexpressing or knockdown embryos. Overall, our experiments delineate novel roles for zebrafish Klf4 in regulating the ionocyte progenitor population throughout early stem cell stage to initiation of terminal differentiation, which is dependent on Dlc-Notch-mediated lateral inhibition.
Collapse
Affiliation(s)
- Yi-Chung Chen
- Institute of Cellular and Organismic Biology (ICOB), Academia Sinica, Taipei, Taiwan, Republic of China
| | - Bo-Kai Liao
- Department of Aquaculture, National Taiwan Ocean University, Keelung, Taiwan, Republic of China
| | - Yu-Fen Lu
- Institute of Cellular and Organismic Biology (ICOB), Academia Sinica, Taipei, Taiwan, Republic of China
| | - Yu-Hsiu Liu
- Institute of Cellular and Organismic Biology (ICOB), Academia Sinica, Taipei, Taiwan, Republic of China
- Department of Life Science, National Taiwan University, Taipei, Taiwan, Republic of China
| | - Fang-Chi Hsieh
- Institute of Cellular and Organismic Biology (ICOB), Academia Sinica, Taipei, Taiwan, Republic of China
- Graduate Institute of Life Sciences, National Defense Medical Center, Taiwan, Republic of China
| | - Pung-Pung Hwang
- Institute of Cellular and Organismic Biology (ICOB), Academia Sinica, Taipei, Taiwan, Republic of China
| | - Sheng-Ping L. Hwang
- Institute of Cellular and Organismic Biology (ICOB), Academia Sinica, Taipei, Taiwan, Republic of China
- Department of Life Science, National Taiwan University, Taipei, Taiwan, Republic of China
- Graduate Institute of Life Sciences, National Defense Medical Center, Taiwan, Republic of China
- * E-mail:
| |
Collapse
|
26
|
Harkness L, Chen X, Gillard M, Gray PP, Davies AM. Media composition modulates human embryonic stem cell morphology and may influence preferential lineage differentiation potential. PLoS One 2019; 14:e0213678. [PMID: 30889226 PMCID: PMC6424453 DOI: 10.1371/journal.pone.0213678] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2018] [Accepted: 02/26/2019] [Indexed: 12/22/2022] Open
Abstract
Undifferentiated human embryonic stem cells have a distinct morphology (hESC). Changes in cell morphology during culture can be indicative of differentiation. hESC, maintained in diverse medias, demonstrated alterations in morphological parameters and subsequent alterations in underlying transcript expression and lineage differentiation. Analysis of morphological parameters showed distinct and significant differences between the undefined, less defined and Xeno-free medias while still maintaining pluripotency markers. This suggested that the less defined media may be creating dynamic instability in the cytoskeleton, with the cytoskeleton becoming more stabilised in the Xeno-free media as demonstrated by smaller and rounder cells. Examination of early lineage markers during undirected differentiation using d5 embryoid bodies demonstrated increased mesodermal lineage preference as compared to endodermal or ectoderm in cells originally cultured in Xeno-free media. Undefined media showed preference for mesoderm and ectoderm lineages, while less defined media (BSA present) demonstrated no preference. These data reveal that culture media may produce fundamental changes in cell morphology which are reflected in early lineage differentiation choice.
Collapse
Affiliation(s)
- Linda Harkness
- Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, Brisbane, Australia
- * E-mail:
| | - Xiaoli Chen
- Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, Brisbane, Australia
| | - Marianne Gillard
- Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, Brisbane, Australia
| | - Peter Paul Gray
- Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, Brisbane, Australia
| | - Anthony Mitchell Davies
- Translational Cell Imaging Queensland, Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Australia
| |
Collapse
|
27
|
Sullivan CH, Majumdar HD, Neilson KM, Moody SA. Six1 and Irx1 have reciprocal interactions during cranial placode and otic vesicle formation. Dev Biol 2019; 446:68-79. [PMID: 30529252 PMCID: PMC6349505 DOI: 10.1016/j.ydbio.2018.12.003] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2018] [Revised: 12/02/2018] [Accepted: 12/03/2018] [Indexed: 01/04/2023]
Abstract
The specialized sensory organs of the vertebrate head are derived from thickened patches of cells in the ectoderm called cranial sensory placodes. The developmental program that generates these placodes and the genes that are expressed during the process have been studied extensively in a number of animals, yet very little is known about how these genes regulate one another. We previously found via a microarray screen that Six1, a known transcriptional regulator of cranial placode fate, up-regulates Irx1 in ectodermal explants. In this study, we investigated the transcriptional relationship between Six1 and Irx1 and found that they reciprocally regulate each other throughout cranial placode and otic vesicle formation. Although Irx1 expression precedes that of Six1 in the neural border zone, its continued and appropriately patterned expression in the pre-placodal region (PPR) and otic vesicle requires Six1. At early PPR stages, Six1 expands the Irx1 domain, but this activity subsides over time and changes to a predominantly repressive effect. Likewise, Irx1 initially expands Six1 expression in the PPR, but later represses it. We also found that Irx1 and Sox11, a known direct target of Six1, reciprocally affect each other. This work demonstrates that the interactions between Six1 and Irx1 are continuous during PPR and placode development and their transcriptional effects on one another change over developmental time.
Collapse
Affiliation(s)
- Charles H Sullivan
- Department of Biology, Grinnell College, Grinnell, IA, 50112, USA; bDepartment of Anatomy and Cell Biology, George Washington University School of Medicine and Health Sciences, 2300 I (eye) Street, N.W., Washington DC 20037, USA
| | - Himani D Majumdar
- bDepartment of Anatomy and Cell Biology, George Washington University School of Medicine and Health Sciences, 2300 I (eye) Street, N.W., Washington DC 20037, USA
| | - Karen M Neilson
- bDepartment of Anatomy and Cell Biology, George Washington University School of Medicine and Health Sciences, 2300 I (eye) Street, N.W., Washington DC 20037, USA
| | - Sally A Moody
- bDepartment of Anatomy and Cell Biology, George Washington University School of Medicine and Health Sciences, 2300 I (eye) Street, N.W., Washington DC 20037, USA.
| |
Collapse
|
28
|
Cao J, Spielmann M, Qiu X, Huang X, Ibrahim DM, Hill AJ, Zhang F, Mundlos S, Christiansen L, Steemers FJ, Trapnell C, Shendure J. The single-cell transcriptional landscape of mammalian organogenesis. Nature 2019; 566:496-502. [PMID: 30787437 PMCID: PMC6434952 DOI: 10.1038/s41586-019-0969-x] [Citation(s) in RCA: 1649] [Impact Index Per Article: 329.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Accepted: 01/10/2019] [Indexed: 12/15/2022]
Abstract
Mammalian organogenesis is a remarkable process. Within a short timeframe, the cells of the three germ layers transform into an embryo that includes most of the major internal and external organs. Here we investigate the transcriptional dynamics of mouse organogenesis at single-cell resolution. Using single-cell combinatorial indexing, we profiled the transcriptomes of around 2 million cells derived from 61 embryos staged between 9.5 and 13.5 days of gestation, in a single experiment. The resulting 'mouse organogenesis cell atlas' (MOCA) provides a global view of developmental processes during this critical window. We use Monocle 3 to identify hundreds of cell types and 56 trajectories, many of which are detected only because of the depth of cellular coverage, and collectively define thousands of corresponding marker genes. We explore the dynamics of gene expression within cell types and trajectories over time, including focused analyses of the apical ectodermal ridge, limb mesenchyme and skeletal muscle.
Collapse
Affiliation(s)
- Junyue Cao
- Department of Genome Sciences, University of Washington, Seattle, WA, USA
- Molecular and Cellular Biology Program, University of Washington, Seattle, WA, USA
| | - Malte Spielmann
- Department of Genome Sciences, University of Washington, Seattle, WA, USA
| | - Xiaojie Qiu
- Department of Genome Sciences, University of Washington, Seattle, WA, USA
- Molecular and Cellular Biology Program, University of Washington, Seattle, WA, USA
| | - Xingfan Huang
- Department of Genome Sciences, University of Washington, Seattle, WA, USA
- Department of Computer Science, University of Washington, Seattle, WA, USA
| | - Daniel M Ibrahim
- Max Planck Institute for Molecular Genetics, RG Development & Disease, Berlin, Germany
- Institute for Medical and Human Genetics, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Andrew J Hill
- Department of Genome Sciences, University of Washington, Seattle, WA, USA
| | | | - Stefan Mundlos
- Max Planck Institute for Molecular Genetics, RG Development & Disease, Berlin, Germany
- Institute for Medical and Human Genetics, Charité Universitätsmedizin Berlin, Berlin, Germany
| | | | | | - Cole Trapnell
- Department of Genome Sciences, University of Washington, Seattle, WA, USA.
- Brotman Baty Institute for Precision Medicine, Seattle, WA, USA.
- Allen Discovery Center for Cell Lineage Tracing, Seattle, WA, USA.
| | - Jay Shendure
- Department of Genome Sciences, University of Washington, Seattle, WA, USA.
- Brotman Baty Institute for Precision Medicine, Seattle, WA, USA.
- Allen Discovery Center for Cell Lineage Tracing, Seattle, WA, USA.
- Howard Hughes Medical Institute, Seattle, WA, USA.
| |
Collapse
|
29
|
Iwasawa T, Takahashi K, Goto M, Anzai M, Shirasawa H, Sato W, Kumazawa Y, Terada Y. Human frozen-thawed blastocyst morphokinetics observed using time-lapse cinematography reflects the number of trophectoderm cells. PLoS One 2019; 14:e0210992. [PMID: 30650134 PMCID: PMC6334947 DOI: 10.1371/journal.pone.0210992] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2018] [Accepted: 01/04/2019] [Indexed: 12/12/2022] Open
Abstract
Recent studies reported morphokinetic indices for optimal selection of embryos in assisted reproductive technology (ART). The morphokinetics in blastocyst stage include the collapse and re-expansion rates after thawing. However, evaluation methods using these morphokinetics have not been established, mainly because the underlying molecular mechanisms remain unclarified. In this study, we focused on the relationship between these morphokinetic observation of the blastocyst behaviour and the number of cells constituting the blastocyst. We evaluated 38 surplus human frozen-thawed blastocysts using time-lapse cinematography and recorded their expansion, contraction, and hatching. A total of 28 blastocysts expanded in culture (cross-sectional area ≥ 5,000 π μm2). In comparison to the ones that did not, the expanded group presented significantly more number of inner cell mass (ICM) and trophectoderm (TE) cells, which eventually develop into the fetus and placenta, respectively (ICM: Expanded 10.2 ± 6.3 vs. Non-Expanded 6.0 ± 12.3, p < 0.05; TE: Expanded 165.7 ± 74.8 vs. Non-Expanded 57.0 ± 29.4, p < 0.05). Moreover, a positive correlation was found between the expansion rate (up to 4 h) and the number of TE cells (r = 0.558, p = 0.0021). Additionally, blastocysts that hatched had a significantly higher number of TE cells than those that did not (hatching 225.2 ± 61.2 vs. no hatching 121.1 ± 48.6, p < 0.0001). The number of TE cells per unit of cross-sectional area correlated negatively with the contraction time (r = –0.601, p = 0.0007). No correlation between the number of ICM cells and these morphokinetics was detected. In conclusion, our study demonstrates that different morphokinetics of frozen-thawed blastocysts reflect the number of TE cells. The differentiation of blastocysts containing sufficient TE cells would be beneficial for implantation and prognosis of a subsequent pregnancy. Thus, evaluation of these morphokinetics can be an effective method to screen good embryos for ART.
Collapse
Affiliation(s)
- Takuya Iwasawa
- Department of Obstetrics and Gynecology, Akita University Graduate School of Medicine, Akita University, Akita, Japan
- * E-mail:
| | - Kazumasa Takahashi
- Department of Obstetrics and Gynecology, Akita University Graduate School of Medicine, Akita University, Akita, Japan
| | - Mayumi Goto
- Department of Obstetrics and Gynecology, Akita University Graduate School of Medicine, Akita University, Akita, Japan
| | - Mibuki Anzai
- Department of Obstetrics and Gynecology, Akita University Graduate School of Medicine, Akita University, Akita, Japan
| | - Hiromitsu Shirasawa
- Department of Obstetrics and Gynecology, Akita University Graduate School of Medicine, Akita University, Akita, Japan
| | - Wataru Sato
- Department of Obstetrics and Gynecology, Akita University Graduate School of Medicine, Akita University, Akita, Japan
| | - Yukiyo Kumazawa
- Department of Obstetrics and Gynecology, Akita University Graduate School of Medicine, Akita University, Akita, Japan
| | - Yukihiro Terada
- Department of Obstetrics and Gynecology, Akita University Graduate School of Medicine, Akita University, Akita, Japan
| |
Collapse
|
30
|
Slota LA, McClay DR. Identification of neural transcription factors required for the differentiation of three neuronal subtypes in the sea urchin embryo. Dev Biol 2018; 435:138-149. [PMID: 29331498 PMCID: PMC5837949 DOI: 10.1016/j.ydbio.2017.12.015] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Accepted: 12/20/2017] [Indexed: 12/30/2022]
Abstract
Correct patterning of the nervous system is essential for an organism's survival and complex behavior. Embryologists have used the sea urchin as a model for decades, but our understanding of sea urchin nervous system patterning is incomplete. Previous histochemical studies identified multiple neurotransmitters in the pluteus larvae of several sea urchin species. However, little is known about how, where and when neural subtypes are differentially specified during development. Here, we examine the molecular mechanisms of neuronal subtype specification in 3 distinct neural subtypes in the Lytechinus variegatus larva. We show that these subtypes are specified through Delta/Notch signaling and identify a different transcription factor required for the development of each neural subtype. Our results show achaete-scute and neurogenin are proneural for the serotonergic neurons of the apical organ and cholinergic neurons of the ciliary band, respectively. We also show that orthopedia is not proneural but is necessary for the differentiation of the cholinergic/catecholaminergic postoral neurons. Interestingly, these transcription factors are used similarly during vertebrate neurogenesis. We believe this study is a starting point for building a neural gene regulatory network in the sea urchin and for finding conserved deuterostome neurogenic mechanisms.
Collapse
Affiliation(s)
- Leslie A Slota
- Department of Biology, Duke University, Durham, NC 27708, United States
| | - David R McClay
- Department of Biology, Duke University, Durham, NC 27708, United States.
| |
Collapse
|
31
|
Kirillova A, Genikhovich G, Pukhlyakova E, Demilly A, Kraus Y, Technau U. Germ-layer commitment and axis formation in sea anemone embryonic cell aggregates. Proc Natl Acad Sci U S A 2018; 115:1813-1818. [PMID: 29440382 PMCID: PMC5828576 DOI: 10.1073/pnas.1711516115] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Robust morphogenetic events are pivotal for animal embryogenesis. However, comparison of the modes of development of different members of a phylum suggests that the spectrum of developmental trajectories accessible for a species might be far broader than can be concluded from the observation of normal development. Here, by using a combination of microsurgery and transgenic reporter gene expression, we show that, facing a new developmental context, the aggregates of dissociated embryonic cells of the sea anemone Nematostella vectensis take an alternative developmental trajectory. The self-organizing aggregates rely on Wnt signals produced by the cells of the original blastopore lip organizer to form body axes but employ morphogenetic events typical for normal development of distantly related cnidarians to re-establish the germ layers. The reaggregated cells show enormous plasticity including the capacity of the ectodermal cells to convert into endoderm. Our results suggest that new developmental trajectories may evolve relatively easily when highly plastic embryonic cells face new constraints.
Collapse
Affiliation(s)
- Anastasia Kirillova
- Department for Molecular Evolution and Development, Center of Organismal Systems Biology, Faculty of Life Sciences, University of Vienna, A-1090 Vienna, Austria
- Department of Evolutionary Biology, Biological Faculty, Moscow State University, 119234 Moscow, Russia
| | - Grigory Genikhovich
- Department for Molecular Evolution and Development, Center of Organismal Systems Biology, Faculty of Life Sciences, University of Vienna, A-1090 Vienna, Austria;
| | - Ekaterina Pukhlyakova
- Department for Molecular Evolution and Development, Center of Organismal Systems Biology, Faculty of Life Sciences, University of Vienna, A-1090 Vienna, Austria
| | - Adrien Demilly
- Department for Molecular Evolution and Development, Center of Organismal Systems Biology, Faculty of Life Sciences, University of Vienna, A-1090 Vienna, Austria
| | - Yulia Kraus
- Department of Evolutionary Biology, Biological Faculty, Moscow State University, 119234 Moscow, Russia;
- Koltzov Institute of Developmental Biology, Russian Academy of Sciences, 119334 Moscow, Russia
| | - Ulrich Technau
- Department for Molecular Evolution and Development, Center of Organismal Systems Biology, Faculty of Life Sciences, University of Vienna, A-1090 Vienna, Austria;
| |
Collapse
|
32
|
Hayashi K, Yamamoto TS, Ueno N. Intracellular calcium signal at the leading edge regulates mesodermal sheet migration during Xenopus gastrulation. Sci Rep 2018; 8:2433. [PMID: 29402947 PMCID: PMC5799360 DOI: 10.1038/s41598-018-20747-w] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2017] [Accepted: 01/23/2018] [Indexed: 12/15/2022] Open
Abstract
During the gastrulation stage in animal embryogenesis, the cells leading the axial mesoderm migrate toward the anterior side of the embryo, vigorously extending cell protrusions such as lamellipodia. It is thought that the leading cells sense gradients of chemoattractants emanating from the ectodermal cells and translate them to initiate and maintain the cell movements necessary for gastrulation. However, it is unclear how the extracellular information is converted to the intracellular chemical reactions that lead to motion. Here we demonstrated that intracellular Ca2+ levels in the protrusion-forming leading cells are markedly higher than those of the following cells and the axial mesoderm cells. We also showed that inhibiting the intracellular Ca2+ significantly retarded the gastrulation cell movements, while increasing the intracellular Ca2+ with an ionophore enhanced the migration. We further found that the ionophore treatment increased the active form of the small GTPase Rac1 in these cells. Our results suggest that transient intracellular Ca2+ signals play an essential role in the active cell migration during gastrulation.
Collapse
Affiliation(s)
- Kentaro Hayashi
- Department of Developmental Biology, National Institute for Basic Biology, 38 Nishigonaka, Myodaiji, Okazaki, Aichi, 444-8585, Japan
- Department of Basic Biology, School of Life Science, The Graduate University of Advanced Studies (SOKENDAI), 38 Nishigonaka, Myodaiji, Okazaki, Aichi, 444-8585, Japan
| | - Takamasa S Yamamoto
- Department of Developmental Biology, National Institute for Basic Biology, 38 Nishigonaka, Myodaiji, Okazaki, Aichi, 444-8585, Japan
| | - Naoto Ueno
- Department of Developmental Biology, National Institute for Basic Biology, 38 Nishigonaka, Myodaiji, Okazaki, Aichi, 444-8585, Japan.
- Department of Basic Biology, School of Life Science, The Graduate University of Advanced Studies (SOKENDAI), 38 Nishigonaka, Myodaiji, Okazaki, Aichi, 444-8585, Japan.
| |
Collapse
|
33
|
Abstract
Progranulin is a 67-88 kDa glycoprotein, also known as acrogranin, PC-cell-derived growth factor, granulin-epithelin precursor, and proepithelin. This protein is present in a variety of mouse, rat, and human tissues. Progranulin, which is a growth factor, mediates cell cycle progression and cell migration in normal and pathological conditions. In several types of cancers, progranulin expression is upregulated, whereas function-interfering mutations in the granulin gene in humans have been linked to a subset of heritable cases of frontotemporal lobar degeneration. Also, progranulin has important effects on mouse preimplantation embryo development in vitro, including regulation of the appearance of the epithelium in the developing mouse blastocyst and growth of trophectoderm. Furthermore, progranulin promotes mouse blastocyst hatching, adhesion, and outgrowth in vitro. In this chapter, we describe some of the techniques that may be useful in the study of progranulin in embryo development.
Collapse
Affiliation(s)
- Laura Diaz-Cueto
- Research Unit in Reproductive Medicine, UMAE Hospital de Gineco Obstetricia No. 4 "Luis Castelazo Ayala", Instituto Mexicano del Seguro Social, Mexico City, Mexico.
| | - Fabian Arechavaleta-Velasco
- Research Unit in Reproductive Medicine, UMAE Hospital de Gineco Obstetricia No. 4 "Luis Castelazo Ayala", Instituto Mexicano del Seguro Social, Mexico City, Mexico
| | - George L Gerton
- Center for Research on Reproduction and Women's Health, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| |
Collapse
|
34
|
Lou CH, Chousal J, Goetz A, Shum EY, Brafman D, Liao X, Mora-Castilla S, Ramaiah M, Cook-Andersen H, Laurent L, Wilkinson MF. Nonsense-Mediated RNA Decay Influences Human Embryonic Stem Cell Fate. Stem Cell Reports 2017; 6:844-857. [PMID: 27304915 PMCID: PMC4912386 DOI: 10.1016/j.stemcr.2016.05.008] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2016] [Revised: 05/13/2016] [Accepted: 05/16/2016] [Indexed: 11/18/2022] Open
Abstract
Nonsense-mediated RNA decay (NMD) is a highly conserved pathway that selectively degrades specific subsets of RNA transcripts. Here, we provide evidence that NMD regulates early human developmental cell fate. We found that NMD factors tend to be expressed at higher levels in human pluripotent cells than in differentiated cells, raising the possibility that NMD must be downregulated to permit differentiation. Loss- and gain-of-function experiments in human embryonic stem cells (hESCs) demonstrated that, indeed, NMD downregulation is essential for efficient generation of definitive endoderm. RNA-seq analysis identified NMD target transcripts induced when NMD is suppressed in hESCs, including many encoding signaling components. This led us to test the role of TGF-β and BMP signaling, which we found NMD acts through to influence definitive endoderm versus mesoderm fate. Our results suggest that selective RNA decay is critical for specifying the developmental fate of specific human embryonic cell lineages. The NMD RNA degradation pathway is highly active in pluripotent cells RNA-seq analysis identifies mRNA targets of NMD in human embryonic stem cells NMD degrades mRNAs encoding TGF-β/BMP, WNT, and FGF signaling components NMD acts through signaling pathways to influence endoderm versus mesoderm cell fate
Collapse
Affiliation(s)
- Chih-Hong Lou
- Department of Reproductive Medicine, School of Medicine, University of California San Diego, La Jolla, CA 92093, USA
| | - Jennifer Chousal
- Department of Reproductive Medicine, School of Medicine, University of California San Diego, La Jolla, CA 92093, USA
| | - Alexandra Goetz
- Department of Reproductive Medicine, School of Medicine, University of California San Diego, La Jolla, CA 92093, USA
| | - Eleen Y Shum
- Department of Reproductive Medicine, School of Medicine, University of California San Diego, La Jolla, CA 92093, USA
| | - David Brafman
- School of Biological and Health Systems Engineering, Arizona State University, Tempe, AZ 85281, USA
| | - Xiaoyan Liao
- Department of Reproductive Medicine, School of Medicine, University of California San Diego, La Jolla, CA 92093, USA
| | - Sergio Mora-Castilla
- Department of Reproductive Medicine, School of Medicine, University of California San Diego, La Jolla, CA 92093, USA
| | - Madhuvanthi Ramaiah
- Department of Reproductive Medicine, School of Medicine, University of California San Diego, La Jolla, CA 92093, USA
| | - Heidi Cook-Andersen
- Department of Reproductive Medicine, School of Medicine, University of California San Diego, La Jolla, CA 92093, USA
| | - Louise Laurent
- Department of Reproductive Medicine, School of Medicine, University of California San Diego, La Jolla, CA 92093, USA
| | - Miles F Wilkinson
- Department of Reproductive Medicine, School of Medicine, University of California San Diego, La Jolla, CA 92093, USA; Institute for Genomic Medicine, University of California San Diego, La Jolla, CA 92093, USA.
| |
Collapse
|
35
|
Jeong W, Jung S, Bazer FW, Kim J. Stem cell factor-induced AKT cell signaling pathway: Effects on porcine trophectoderm and uterine luminal epithelial cells. Gen Comp Endocrinol 2017; 250:113-121. [PMID: 28551414 DOI: 10.1016/j.ygcen.2017.05.015] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/17/2017] [Revised: 05/19/2017] [Accepted: 05/23/2017] [Indexed: 01/25/2023]
Abstract
Stem cell factor (SCF) is a multipotent growth factor that elicits diverse biological actions in various aspects of embryogenesis and animal development. The aim of the present study was to assess SCF-induced intracellular signaling and cellular activities in porcine trophectoderm (pTr) and uterine luminal epithelial (pLE) cells which are well known as useful to elucidate developmental events. SCF induced abundances of p-AKT, p-P70RSK and RPS6 proteins in pTr cells reached to their maximum, and then returned to basal levels by 120min. In pLE cells, SCF induced protracted effect to increase AKT phosphorylation which was well correlated with the time course for P70RSK and RPS6 phosphorylation. LY294002 (an inhibitor of AKT) decreased SCF-induced p-AKT, p-P70RSK and p-RPS6 proteins. Also, immunofluorescence analyses revealed that p-RPS6 was abundant within the cytoplasm of SCF-treated cells, but p-RPS6 was present only at basal levels in cells treated with LY294002. In the presence of LY294002, both SCF-stimulated transient and sustained AKT phosphorylation were inhibited in pLE cells. Furthermore, SCF increased migration of pTr and pLE cells, but LY294002 significantly reduced this effect of SCF. In conclusion, results of the present study suggest that SCF secreted by the endometrium induces autocrine/paracrine signaling responses that stimulate migration of pTr and pLE cells through activation of the AKT cell signaling pathway. Those results support the hypothesis that SCF is a critical regulatory factor for conceptus development and implantation during pregnancy in pigs.
Collapse
Affiliation(s)
- Wooyoung Jeong
- Department of Animal Resources Science, Dankook University, Cheonan, Republic of Korea
| | - Seoungo Jung
- Department of Animal Resources Science, Dankook University, Cheonan, Republic of Korea
| | - Fuller W Bazer
- Center for Animal Biotechnology and Genomics and Department of Animal Science, Texas A&M University, College Station 77843-2471, TX, USA
| | - Jinyoung Kim
- Department of Animal Resources Science, Dankook University, Cheonan, Republic of Korea.
| |
Collapse
|
36
|
Chen J, Wang Q, Zhou J, Deng W, Yu Q, Cao X, Wang J, Shao F, Li Y, Ma P, Spector M, Yu J, Xu X. Porphyra polysaccharide-derived carbon dots for non-viral co-delivery of different gene combinations and neuronal differentiation of ectodermal mesenchymal stem cells. Nanoscale 2017; 9:10820-10831. [PMID: 28726952 DOI: 10.1039/c7nr03327c] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
In this study, multifunctional fluorescent carbon dots (CDs) were synthesized using a one-pot hydrothermal carbonization reaction, with the naturally-occurring porphyra polysaccharide (PPS) serving as a single carbon source for the first time and ethylenediamine (Ed) acting as the surface passivation agent. The resulting CDs enjoyed a high quantum yield (56.3%), excitation-dependent fluorescence, small size (<10 nm), spherical shape, uniform distribution, positive surface charge, low cytotoxicity and excellent ability to condense macromolecular plasmid DNA. The synthesized CDs were employed for neuronal induction from ectodermal mesenchymal stem cells for the first time via highly efficient non-viral gene delivery. The optimal combination of factors (Ascl1 and Brn2) was selected from seven different combinations out of Ascl1, Brn2 and Sox2 according to the expression of neuronal markers (Tuj1, Map2 and Tau). The results of qRT-PCR demonstrated that the CDs possessed a significantly higher transfection efficiency than the commercially available transfection reagents PEI (25 kDa) and Lipofectamine2000. Moreover, the CDs/pDNA nanoparticles exhibited more efficient neuronal differentiation of the EMSCs than the AT-RA-containing induction medium. Furthermore, the CDs/pDNA nanoparticles could enter cells via both caveolae- and clathrin-mediated endocytosis. Taken together, the natural polysaccharide PPS-derived CDs enriched the current application of CDs by employing the CDs as a novel non-viral gene carrier for neuronal differentiation of adult stem cells, which held great promise in tissue engineering and bioimaging.
Collapse
Affiliation(s)
- Jiaxin Chen
- Department of Pharmaceutics, School of Pharmacy, and Center for Drug/Gene Delivery and Tissue Engineering, Jiangsu University, Zhenjiang 212001, P.R. China.
| | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
37
|
Hintze M, Prajapati RS, Tambalo M, Christophorou NAD, Anwar M, Grocott T, Streit A. Cell interactions, signals and transcriptional hierarchy governing placode progenitor induction. Development 2017; 144:2810-2823. [PMID: 28684624 PMCID: PMC5560042 DOI: 10.1242/dev.147942] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2016] [Accepted: 06/21/2017] [Indexed: 12/18/2022]
Abstract
In vertebrates, cranial placodes contribute to all sense organs and sensory ganglia and arise from a common pool of Six1/Eya2+ progenitors. Here we dissect the events that specify ectodermal cells as placode progenitors using newly identified genes upstream of the Six/Eya complex. We show in chick that two different tissues, namely the lateral head mesoderm and the prechordal mesendoderm, gradually induce placode progenitors: cells pass through successive transcriptional states, each identified by distinct factors and controlled by different signals. Both tissues initiate a common transcriptional state but over time impart regional character, with the acquisition of anterior identity dependent on Shh signalling. Using a network inference approach we predict the regulatory relationships among newly identified transcription factors and verify predicted links in knockdown experiments. Based on this analysis we propose a new model for placode progenitor induction, in which the initial induction of a generic transcriptional state precedes regional divergence.
Collapse
Affiliation(s)
- Mark Hintze
- Department of Craniofacial Development & Stem Cell Biology, King's College London, Dental Institute, London SE1 9RT, UK
| | - Ravindra Singh Prajapati
- Department of Craniofacial Development & Stem Cell Biology, King's College London, Dental Institute, London SE1 9RT, UK
| | - Monica Tambalo
- Department of Craniofacial Development & Stem Cell Biology, King's College London, Dental Institute, London SE1 9RT, UK
| | - Nicolas A D Christophorou
- Department of Craniofacial Development & Stem Cell Biology, King's College London, Dental Institute, London SE1 9RT, UK
| | - Maryam Anwar
- Department of Craniofacial Development & Stem Cell Biology, King's College London, Dental Institute, London SE1 9RT, UK
| | - Timothy Grocott
- Department of Craniofacial Development & Stem Cell Biology, King's College London, Dental Institute, London SE1 9RT, UK
| | - Andrea Streit
- Department of Craniofacial Development & Stem Cell Biology, King's College London, Dental Institute, London SE1 9RT, UK
| |
Collapse
|
38
|
Reinholt BM, Bradley JS, Jacobs RD, Ealy AD, Johnson SE. Tissue organization alters gene expression in equine induced trophectoderm cells. Gen Comp Endocrinol 2017; 247:174-182. [PMID: 28161437 DOI: 10.1016/j.ygcen.2017.01.030] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/29/2016] [Revised: 01/26/2017] [Accepted: 01/29/2017] [Indexed: 12/29/2022]
Abstract
Rapid morphological and gene expression changes occur during the early formation of a mammalian blastocyst. Critical to successful retention of the blastocyst and pregnancy is a functional trophectoderm (TE) that supplies the developing embryo with paracrine factors and hormones. The contribution of TE conformational changes to gene expression was examined in equine induced trophoblast (iTr) cells. Equine iTr cells were cultured as monolayers or in suspension to form spheres. The spheres are hollow and structurally reminiscent of native equine blastocysts. Total RNA was isolated from iTr monolayers and spheres and analyzed by RNA sequencing. An average of 32.2 and 31million aligned reads were analyzed for the spheres and monolayers, respectively. Forty-four genes were unique to monolayers and 45 genes were expressed only in spheres. Conformation did not affect expression of CDX2, POU5F1, TEAD4, ETS2, ELF3, GATA2 or TFAP2A, the core gene network of native TE. Bioinformatic analysis was used to identify classes of genes differentially expressed in response to changes in tissue shape. In both iTr spheres and monolayers, the majority of the differentially expressed genes were associated with binding activity in cellular, developmental and metabolic processes. Inherent to protein:protein interactions, several receptor-ligand families were identified in iTr cells with enrichment of genes coding for PI3-kinase and MAPK signaling intermediates. Our results provide evidence for ligand initiated kinase signaling pathways that underlie early trophectoderm structural changes.
Collapse
Affiliation(s)
- Brad M Reinholt
- Department of Animal and Poultry Sciences, Virginia Polytechnic Institute and State University, Blacksburg, VA, United States
| | - Jennifer S Bradley
- Department of Animal and Poultry Sciences, Virginia Polytechnic Institute and State University, Blacksburg, VA, United States
| | - Robert D Jacobs
- Department of Animal and Poultry Sciences, Virginia Polytechnic Institute and State University, Blacksburg, VA, United States
| | - Alan D Ealy
- Department of Animal and Poultry Sciences, Virginia Polytechnic Institute and State University, Blacksburg, VA, United States
| | - Sally E Johnson
- Department of Animal and Poultry Sciences, Virginia Polytechnic Institute and State University, Blacksburg, VA, United States.
| |
Collapse
|
39
|
Chen X, Yu B, Carriero N, Silva C, Bonneau R. Mocap: large-scale inference of transcription factor binding sites from chromatin accessibility. Nucleic Acids Res 2017; 45:4315-4329. [PMID: 28334916 PMCID: PMC5416775 DOI: 10.1093/nar/gkx174] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2016] [Revised: 02/28/2017] [Accepted: 03/06/2017] [Indexed: 12/21/2022] Open
Abstract
Differential binding of transcription factors (TFs) at cis-regulatory loci drives the differentiation and function of diverse cellular lineages. Understanding the regulatory interactions that underlie cell fate decisions requires characterizing TF binding sites (TFBS) across multiple cell types and conditions. Techniques, e.g. ChIP-Seq can reveal genome-wide patterns of TF binding, but typically requires laborious and costly experiments for each TF-cell-type (TFCT) condition of interest. Chromosomal accessibility assays can connect accessible chromatin in one cell type to many TFs through sequence motif mapping. Such methods, however, rarely take into account that the genomic context preferred by each factor differs from TF to TF, and from cell type to cell type. To address the differences in TF behaviors, we developed Mocap, a method that integrates chromatin accessibility, motif scores, TF footprints, CpG/GC content, evolutionary conservation and other factors in an ensemble of TFCT-specific classifiers. We show that integration of genomic features, such as CpG islands improves TFBS prediction in some TFCT. Further, we describe a method for mapping new TFCT, for which no ChIP-seq data exists, onto our ensemble of classifiers and show that our cross-sample TFBS prediction method outperforms several previously described methods.
Collapse
Affiliation(s)
- Xi Chen
- Department of Biology, New York University, New York, NY 10003, USA
| | - Bowen Yu
- Department of Computer Science, New York University, New York, NY 10003, USA
| | - Nicholas Carriero
- Center for Computational Biology, Flatiron Foundation, Simons Foundation, New York, NY 10010, USA
| | - Claudio Silva
- Department of Computer Science, New York University, New York, NY 10003, USA
| | - Richard Bonneau
- Department of Biology, New York University, New York, NY 10003, USA
- Department of Computer Science, New York University, New York, NY 10003, USA
- Center for Computational Biology, Flatiron Foundation, Simons Foundation, New York, NY 10010, USA
| |
Collapse
|
40
|
Qu Y, Han B, Gao B, Bose S, Gong Y, Wawrowsky K, Giuliano AE, Sareen D, Cui X. Differentiation of Human Induced Pluripotent Stem Cells to Mammary-like Organoids. Stem Cell Reports 2017; 8:205-215. [PMID: 28132888 PMCID: PMC5312254 DOI: 10.1016/j.stemcr.2016.12.023] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2016] [Revised: 12/21/2016] [Accepted: 12/22/2016] [Indexed: 11/17/2022] Open
Abstract
Human induced pluripotent stem cells (iPSCs) can give rise to multiple cell types and hold great promise in regenerative medicine and disease-modeling applications. We have developed a reliable two-step protocol to generate human mammary-like organoids from iPSCs. Non-neural ectoderm-cell-containing spheres, referred to as mEBs, were first differentiated and enriched from iPSCs using MammoCult medium. Gene expression profile analysis suggested that mammary gland function-associated signaling pathways were hallmarks of 10-day differentiated mEBs. We then generated mammary-like organoids from 10-day mEBs using 3D floating mixed gel culture and a three-stage differentiation procedure. These organoids expressed common breast tissue, luminal, and basal markers, including estrogen receptor, and could be induced to produce milk protein. These results demonstrate that human iPSCs can be directed in vitro toward mammary lineage differentiation. Our findings provide an iPSC-based model for studying regulation of normal mammary cell fate and function as well as breast disease development.
Collapse
Affiliation(s)
- Ying Qu
- Department of Surgery, Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, 8700 Beverly Boulevard, Davis Building 2065, Los Angeles, CA 90048, USA
| | - Bingchen Han
- Department of Surgery, Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, 8700 Beverly Boulevard, Davis Building 2065, Los Angeles, CA 90048, USA
| | - Bowen Gao
- Department of Surgery, Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, 8700 Beverly Boulevard, Davis Building 2065, Los Angeles, CA 90048, USA
| | - Shikha Bose
- Department of Pathology, Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Yiping Gong
- Department of Breast Surgery, Hubei Cancer Hospital, Wuhan 430079, China
| | - Kolja Wawrowsky
- Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Armando E Giuliano
- Department of Surgery, Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, 8700 Beverly Boulevard, Davis Building 2065, Los Angeles, CA 90048, USA
| | - Dhruv Sareen
- Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA; Board of Governors Regenerative Medicine Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA; The David and Janet Polak Foundation Stem Cell Core Laboratory, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Xiaojiang Cui
- Department of Surgery, Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, 8700 Beverly Boulevard, Davis Building 2065, Los Angeles, CA 90048, USA.
| |
Collapse
|
41
|
Kursawe J, Bardenet R, Zartman JJ, Baker RE, Fletcher AG. Robust cell tracking in epithelial tissues through identification of maximum common subgraphs. J R Soc Interface 2016; 13:20160725. [PMID: 28334699 PMCID: PMC5134023 DOI: 10.1098/rsif.2016.0725] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2016] [Accepted: 10/17/2016] [Indexed: 11/30/2022] Open
Abstract
Tracking of cells in live-imaging microscopy videos of epithelial sheets is a powerful tool for investigating fundamental processes in embryonic development. Characterizing cell growth, proliferation, intercalation and apoptosis in epithelia helps us to understand how morphogenetic processes such as tissue invagination and extension are locally regulated and controlled. Accurate cell tracking requires correctly resolving cells entering or leaving the field of view between frames, cell neighbour exchanges, cell removals and cell divisions. However, current tracking methods for epithelial sheets are not robust to large morphogenetic deformations and require significant manual interventions. Here, we present a novel algorithm for epithelial cell tracking, exploiting the graph-theoretic concept of a 'maximum common subgraph' to track cells between frames of a video. Our algorithm does not require the adjustment of tissue-specific parameters, and scales in sub-quadratic time with tissue size. It does not rely on precise positional information, permitting large cell movements between frames and enabling tracking in datasets acquired at low temporal resolution due to experimental constraints such as phototoxicity. To demonstrate the method, we perform tracking on the Drosophila embryonic epidermis and compare cell-cell rearrangements to previous studies in other tissues. Our implementation is open source and generally applicable to epithelial tissues.
Collapse
Affiliation(s)
- Jochen Kursawe
- Mathematical Institute, University of Oxford, Andrew Wiles Building, Radcliffe Observatory Quarter, Woodstock Road, Oxford OX2 6GG, UK
| | - Rémi Bardenet
- CNRS and CRIStAL, Université de Lille, 59651 Villeneuve d'Ascq, France
| | - Jeremiah J Zartman
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, 205D McCourtney Hall of Molecular Science and Engineering, Notre Dame, IN 46556, USA
| | - Ruth E Baker
- Mathematical Institute, University of Oxford, Andrew Wiles Building, Radcliffe Observatory Quarter, Woodstock Road, Oxford OX2 6GG, UK
| | - Alexander G Fletcher
- School of Mathematics and Statistics, University of Sheffield, Hicks Building, Hounsfield Road, Sheffield S3 7RH, UK
- Bateson Centre, University of Sheffield, Sheffield S10 2TN, UK
| |
Collapse
|
42
|
Yan Y, Bejoy J, Xia J, Guan J, Zhou Y, Li Y. Neural patterning of human induced pluripotent stem cells in 3-D cultures for studying biomolecule-directed differential cellular responses. Acta Biomater 2016; 42:114-126. [PMID: 27345135 DOI: 10.1016/j.actbio.2016.06.027] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2016] [Revised: 06/01/2016] [Accepted: 06/22/2016] [Indexed: 12/11/2022]
Abstract
INTRODUCTION Appropriate neural patterning of human induced pluripotent stem cells (hiPSCs) is critical to generate specific neural cells/tissues and even mini-brains that are physiologically relevant to model neurological diseases. However, the capacity of signaling factors that regulate 3-D neural tissue patterning in vitro and differential responses of the resulting neural populations to various biomolecules have not yet been fully understood. METHODS By tuning neural patterning of hiPSCs with small molecules targeting sonic hedgehog (SHH) signaling, this study generated different 3-D neuronal cultures that were mainly comprised of either cortical glutamatergic neurons or motor neurons. RESULTS Abundant glutamatergic neurons were observed following the treatment with an antagonist of SHH signaling, cyclopamine, while Islet-1 and HB9-expressing motor neurons were enriched by an SHH agonist, purmorphamine. In neurons derived with different neural patterning factors, whole-cell patch clamp recordings showed similar voltage-gated Na(+)/K(+) currents, depolarization-evoked action potentials and spontaneous excitatory post-synaptic currents. Moreover, these different neuronal populations exhibited differential responses to three classes of biomolecules, including (1) matrix metalloproteinase inhibitors that affect extracellular matrix remodeling; (2) N-methyl-d-aspartate that induces general neurotoxicity; and (3) amyloid β (1-42) oligomers that cause neuronal subtype-specific neurotoxicity. CONCLUSIONS This study should advance our understanding of hiPSC self-organization and neural tissue development and provide a transformative approach to establish 3-D models for neurological disease modeling and drug discovery. STATEMENT OF SIGNIFICANCE Appropriate neural patterning of human induced pluripotent stem cells (hiPSCs) is critical to generate specific neural cells, tissues and even mini-brains that are physiologically relevant to model neurological diseases. However, the capability of sonic hedgehog-related small molecules to tune different neuronal subtypes in 3-D differentiation from hiPSCs and the differential cellular responses of region-specific neuronal subtypes to various biomolecules have not been fully investigated. By tuning neural patterning of hiPSCs with small molecules targeting sonic hedgehog signaling, this study provides knowledge on the differential susceptibility of region-specific neuronal subtypes derived from hiPSCs to different biomolecules in extracellular matrix remodeling and neurotoxicity. The findings are significant for understanding 3-D neural patterning of hiPSCs for the applications in brain organoid formation, neurological disease modeling, and drug discovery.
Collapse
Affiliation(s)
- Yuanwei Yan
- Department of Chemical and Biomedical Engineering, FAMU-FSU College of Engineering, Florida State University, Tallahassee, FL, USA
| | - Julie Bejoy
- Department of Chemical and Biomedical Engineering, FAMU-FSU College of Engineering, Florida State University, Tallahassee, FL, USA
| | - Junfei Xia
- Department of Chemical and Biomedical Engineering, FAMU-FSU College of Engineering, Florida State University, Tallahassee, FL, USA
| | - Jingjiao Guan
- Department of Chemical and Biomedical Engineering, FAMU-FSU College of Engineering, Florida State University, Tallahassee, FL, USA
| | - Yi Zhou
- Department of Biomedical Sciences, College of Medicine, Florida State University, Tallahassee, FL, USA
| | - Yan Li
- Department of Chemical and Biomedical Engineering, FAMU-FSU College of Engineering, Florida State University, Tallahassee, FL, USA.
| |
Collapse
|
43
|
Kaucka M, Ivashkin E, Gyllborg D, Zikmund T, Tesarova M, Kaiser J, Xie M, Petersen J, Pachnis V, Nicolis SK, Yu T, Sharpe P, Arenas E, Brismar H, Blom H, Clevers H, Suter U, Chagin AS, Fried K, Hellander A, Adameyko I. Analysis of neural crest-derived clones reveals novel aspects of facial development. Sci Adv 2016; 2:e1600060. [PMID: 27493992 PMCID: PMC4972470 DOI: 10.1126/sciadv.1600060] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2016] [Accepted: 06/29/2016] [Indexed: 05/05/2023]
Abstract
Cranial neural crest cells populate the future facial region and produce ectomesenchyme-derived tissues, such as cartilage, bone, dermis, smooth muscle, adipocytes, and many others. However, the contribution of individual neural crest cells to certain facial locations and the general spatial clonal organization of the ectomesenchyme have not been determined. We investigated how neural crest cells give rise to clonally organized ectomesenchyme and how this early ectomesenchyme behaves during the developmental processes that shape the face. Using a combination of mouse and zebrafish models, we analyzed individual migration, cell crowd movement, oriented cell division, clonal spatial overlapping, and multilineage differentiation. The early face appears to be built from multiple spatially defined overlapping ectomesenchymal clones. During early face development, these clones remain oligopotent and generate various tissues in a given location. By combining clonal analysis, computer simulations, mouse mutants, and live imaging, we show that facial shaping results from an array of local cellular activities in the ectomesenchyme. These activities mostly involve oriented divisions and crowd movements of cells during morphogenetic events. Cellular behavior that can be recognized as individual cell migration is very limited and short-ranged and likely results from cellular mixing due to the proliferation activity of the tissue. These cellular mechanisms resemble the strategy behind limb bud morphogenesis, suggesting the possibility of common principles and deep homology between facial and limb outgrowth.
Collapse
Affiliation(s)
- Marketa Kaucka
- Department of Physiology and Pharmacology, Karolinska Institutet, Stockholm SE-171 77, Sweden
| | - Evgeny Ivashkin
- Department of Physiology and Pharmacology, Karolinska Institutet, Stockholm SE-171 77, Sweden
- Research Center of Neurology, 125367 Moscow, Russia
| | - Daniel Gyllborg
- Unit of Molecular Neurobiology, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm SE-171 77, Sweden
| | - Tomas Zikmund
- Central European Institute of Technology, Brno University of Technology, 616 00 Brno, Czech Republic
| | - Marketa Tesarova
- Central European Institute of Technology, Brno University of Technology, 616 00 Brno, Czech Republic
| | - Jozef Kaiser
- Central European Institute of Technology, Brno University of Technology, 616 00 Brno, Czech Republic
| | - Meng Xie
- Department of Physiology and Pharmacology, Karolinska Institutet, Stockholm SE-171 77, Sweden
| | - Julian Petersen
- Department of Molecular Neurosciences, Medical University of Vienna, Vienna 1190, Austria
| | - Vassilis Pachnis
- Division of Molecular Neurobiology, Medical Research Council National Institute for Medical Research, London NW7 1AA, UK
| | - Silvia K. Nicolis
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, 20126 Milano, Italy
| | - Tian Yu
- Department of Craniofacial Development and Stem Cell Biology, King’s College London Dental Institute, Guy’s Hospital, London SE1 9RT, UK
| | - Paul Sharpe
- Department of Craniofacial Development and Stem Cell Biology, King’s College London Dental Institute, Guy’s Hospital, London SE1 9RT, UK
| | - Ernest Arenas
- Unit of Molecular Neurobiology, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm SE-171 77, Sweden
| | - Hjalmar Brismar
- Science for Life Laboratory, Royal Institute of Technology, Solna 17121, Sweden
| | - Hans Blom
- Science for Life Laboratory, Royal Institute of Technology, Solna 17121, Sweden
| | - Hans Clevers
- Hubrecht Institute of the Royal Netherlands Academy of Arts and Sciences, Princess Maxima Centre and University Medical Centre Utrecht, 3584 Utrecht, Netherlands
| | - Ueli Suter
- Department of Biology, Institute of Molecular Health Sciences, ETH Zurich, Zurich CH-8093, Switzerland
| | - Andrei S. Chagin
- Department of Physiology and Pharmacology, Karolinska Institutet, Stockholm SE-171 77, Sweden
| | - Kaj Fried
- Department of Neuroscience, Karolinska Institutet, Stockholm SE-171 77, Sweden
| | - Andreas Hellander
- Department of Information Technology, Uppsala University, Uppsala SE-751 05, Sweden
- Corresponding author. (I.A.); (A.H.)
| | - Igor Adameyko
- Department of Physiology and Pharmacology, Karolinska Institutet, Stockholm SE-171 77, Sweden
- Department of Molecular Neurosciences, Medical University of Vienna, Vienna 1190, Austria
- Corresponding author. (I.A.); (A.H.)
| |
Collapse
|
44
|
Lim W, Song G. Naringenin-induced migration of embrynoic trophectoderm cells is mediated via PI3K/AKT and ERK1/2 MAPK signaling cascades. Mol Cell Endocrinol 2016; 428:28-37. [PMID: 26994515 DOI: 10.1016/j.mce.2016.03.018] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/08/2015] [Revised: 03/13/2016] [Accepted: 03/15/2016] [Indexed: 12/23/2022]
Abstract
For successful pregnancy, a well-coordinated network of growth factors, nutrients and hormones is required for fetal-maternal interactions. Naringenin, as a weak phytoestrogen, improves diabetes, inflammation, neuronal diseases, cardiovascular diseases and cancers. However, the role of naringenin in migration mechanism(s) of peri-implantation conceptuses is unknown. Therefore, in the present study, we determined the effects of naringenin on migration of porcine trophectoderm (pTr) cells, which is a known in vitro model for research on trophectoderm cell biology and placental-fetal developmental biology, in order to assess intracellular signal transduction pathways activated by naringenin. Migration of pTr cells increased in a dose-dependent manner in response to naringenin. Also, naringenin activated the phosphorylation of AKT and ERK1/2 proteins in a dose-dependent manner and those proteins were abundant mainly in the cytoplasm of naringenin-treated pTr cells. Within 30 min after treatment with 20 μM naringenin, the abundance of phosphorylated EKR1/2, P70S6K, P90RSK and S6K proteins increased, and then returned to basal levels by 120 min whereas the abundance of AKT increased gradually to 120 min post-treatment. However, the phosphorylation of AKT, P70S6K, P90RSK and S6K was reduced in naringenin-induced pTr cells pre-treated with a PI3K inhibitor (LY294002). Also, a MEK1/2 inhibitor (U0126) significantly decreased naringenin-induced phosphorylation of ERK1/2, P70S6K and S6K proteins in pTr cells. Moreover, the naringenin-stimulated migration of pTr cells was suppressed by LY294002 and U0126. Collectively, results of the present study suggest that naringenin supports migration of pTr cells through PI3K/AKT and ERK1/2 MAPK signaling pathways crucial for orchestrating conceptus-uterine interactions.
Collapse
Affiliation(s)
- Whasun Lim
- Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul 136-713, Republic of Korea
| | - Gwonhwa Song
- Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul 136-713, Republic of Korea.
| |
Collapse
|
45
|
Abstract
During mouse preimplantation development, three molecularly, morphologically, and spatially distinct lineages are formed, the embryonic epiblast, the extraembryonic primitive endoderm, and the trophectoderm. Stem cell lines representing each of these lineages have now been derived and can be indefinitely maintained and expanded in culture, providing an unlimited source of material to study the interplay of tissue-specific transcription factors and signaling pathways involved in these fundamental cell fate decisions. Here we outline our current understanding of the derivation, maintenance, and properties of these in vitro stem cell models representing the preimplantation embryonic lineages.
Collapse
Affiliation(s)
- V Garg
- Developmental Biology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY, United States; Biochemistry, Cell and Molecular Biology Program, Weill Cornell Graduate School of Medical Sciences, New York, NY, United States
| | - S Morgani
- Developmental Biology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY, United States
| | - A-K Hadjantonakis
- Developmental Biology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY, United States; Biochemistry, Cell and Molecular Biology Program, Weill Cornell Graduate School of Medical Sciences, New York, NY, United States.
| |
Collapse
|
46
|
Jeong W, Lee J, Bazer FW, Song G, Kim J. Fibroblast growth factor 4-induced migration of porcine trophectoderm cells is mediated via the AKT cell signaling pathway. Mol Cell Endocrinol 2016; 419:208-16. [PMID: 26520032 DOI: 10.1016/j.mce.2015.10.020] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/21/2015] [Revised: 09/18/2015] [Accepted: 10/23/2015] [Indexed: 11/15/2022]
Abstract
During early pregnancy, a well-coordinated communication network between the conceptus and maternal uterus is especially crucial in pigs in which there is a protracted pre-attachment phase prior to implantation. This network is regulated by an astonishing number of molecules such as growth factors. Fibroblast growth factor 4 (FGF4) is a multipotent growth factor that elicits diverse biological actions on various types of cells and tissues. In pigs, FGF4 and its receptors are expressed in the uterine endometrium and conceptus during early pregnancy, but less is known about the FGF4-mediated regulation of conceptus growth during peri-implantation period of pregnancy. Therefore, the aims of the present study were to investigate: 1) expression of endometrial FGF4 mRNA during early pregnancy; 2) up-regulation of FGF receptor expression in porcine trophectoderm (pTr) cells in response to FGF4; and 3) FGF-induced intracellular signaling and cellular activities in pTr cells. In vitro cultured pTr cells incubated with different concentrations of recombinant FGF4 (0-50 ng/ml) responded with a dose-dependent increase in AKT phosphorylation of 2.9-fold at 20 ng/ml FGF4. Within 30 min after treatment with 20 ng/ml FGF4, the abundances of p-AKT, p-P90RSK and p-RPS6 proteins increased 2.1-, 5.2- and 3.2-fold, respectively, and then returned to basal levels by 120 min. To ensure that the stimulatory effect of FGF4 on AKT signaling was p-AKT-dependent, pTr cells were pre-incubated with an AKT inhibitor (LY294002) for 1 h prior to FGF4 treatment. 20 μM of LY294002 decreased FGF4-induced p-AKT, p-P90RSK and p-RPS6 proteins. Immunofluorescence analyses revealed that p-RPS6 proteins were abundant within the cytoplasm of FGF4-treated cells, but present at basal levels in the presence of LY294002. Furthermore, FGF4 increased migration of pTr cells and LY294002 significantly reduced this effect. Results of the present study suggest that activation of the FGF receptor(s) on trophectoderm cells by FGF4 secreted by conceptus/endometrium transduces its signal through the phosphatidylinositol 3-kinase (PI3K)/AKT pathway which is linked to migration of trophectoderm cells that is critical to development of the porcine conceptus.
Collapse
Affiliation(s)
- Wooyoung Jeong
- Department of Animal Resources Science, Dankook University, Cheonan, Republic of Korea
| | - Jieun Lee
- Department of Animal Resources Science, Dankook University, Cheonan, Republic of Korea
| | - Fuller W Bazer
- Center for Animal Biotechnology and Genomics and Department of Animal Science, Texas A&M University, College Station, TX, USA
| | - Gwonhwa Song
- Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul, Republic of Korea.
| | - Jinyoung Kim
- Department of Animal Resources Science, Dankook University, Cheonan, Republic of Korea.
| |
Collapse
|
47
|
Ochiai H, Suga H, Yamada T, Sakakibara M, Kasai T, Ozone C, Ogawa K, Goto M, Banno R, Tsunekawa S, Sugimura Y, Arima H, Oiso Y. BMP4 and FGF strongly induce differentiation of mouse ES cells into oral ectoderm. Stem Cell Res 2015; 15:290-8. [PMID: 26209816 DOI: 10.1016/j.scr.2015.06.011] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/27/2015] [Revised: 06/08/2015] [Accepted: 06/30/2015] [Indexed: 11/30/2022] Open
Abstract
During embryonic development, oral ectoderm differentiates into the adenohypophysis, dental epithelia, salivary glands, and nasal pit. Few reports exist concerning the induction of oral ectoderm from embryonic stem (ES) cells. Generally, any lot differences in fetal bovine serum (FBS) and serum replacer may affect the induction of ES cell-differentiation. Using a previously established culture strategy for differentiation, the proportion of cell aggregates containing Pitx1+ oral ectoderm varied widely between 9-36% when several different lots of FBS or serum replacer were used. We therefore tried to enhance the differentiation method. We found that bone morphogenetic protein (BMP) 4 and fibroblast growth factor (FGF) treatments improved oral ectoderm induction. Such treatment also improved the differentiation of oral ectoderm into the adenohypophysis. Furthermore, increased BMP4 treatment induced dental epithelium and mesenchyme. Such differentiation suggests that the Pitx1+ layer displays similar properties to oral ectoderm, as found in vivo. Differentiation of ES cells into oral ectoderm using different lots of FBS and serum replacer increased 78-90% after treatment with BMP4 and FGF. In summary, we have established a robust strategy for the induction of oral ectoderm differentiation from mouse ES cells.
Collapse
Affiliation(s)
- Hiroshi Ochiai
- Department of Endocrinology and Diabetes, Nagoya University Graduate School of Medicine, 65 Tsuruma-cho, Showa-ku, Nagoya 466-8550, Japan
| | - Hidetaka Suga
- Department of Endocrinology and Diabetes, Nagoya University Graduate School of Medicine, 65 Tsuruma-cho, Showa-ku, Nagoya 466-8550, Japan.
| | - Tomiko Yamada
- Department of Endocrinology and Diabetes, Nagoya University Graduate School of Medicine, 65 Tsuruma-cho, Showa-ku, Nagoya 466-8550, Japan
| | - Mayu Sakakibara
- Department of Endocrinology and Diabetes, Nagoya University Graduate School of Medicine, 65 Tsuruma-cho, Showa-ku, Nagoya 466-8550, Japan
| | - Takatoshi Kasai
- Department of Endocrinology and Diabetes, Nagoya University Graduate School of Medicine, 65 Tsuruma-cho, Showa-ku, Nagoya 466-8550, Japan
| | - Chikafumi Ozone
- Department of Endocrinology and Diabetes, Nagoya University Graduate School of Medicine, 65 Tsuruma-cho, Showa-ku, Nagoya 466-8550, Japan
| | - Koichiro Ogawa
- Department of Endocrinology and Diabetes, Nagoya University Graduate School of Medicine, 65 Tsuruma-cho, Showa-ku, Nagoya 466-8550, Japan
| | - Motomitsu Goto
- Department of Endocrinology and Diabetes, Nagoya University Graduate School of Medicine, 65 Tsuruma-cho, Showa-ku, Nagoya 466-8550, Japan
| | - Ryoichi Banno
- Department of Endocrinology and Diabetes, Nagoya University Graduate School of Medicine, 65 Tsuruma-cho, Showa-ku, Nagoya 466-8550, Japan
| | - Shin Tsunekawa
- Department of Endocrinology and Diabetes, Nagoya University Graduate School of Medicine, 65 Tsuruma-cho, Showa-ku, Nagoya 466-8550, Japan
| | - Yoshihisa Sugimura
- Department of Endocrinology and Diabetes, Nagoya University Graduate School of Medicine, 65 Tsuruma-cho, Showa-ku, Nagoya 466-8550, Japan
| | - Hiroshi Arima
- Department of Endocrinology and Diabetes, Nagoya University Graduate School of Medicine, 65 Tsuruma-cho, Showa-ku, Nagoya 466-8550, Japan
| | - Yutaka Oiso
- Department of Endocrinology and Diabetes, Nagoya University Graduate School of Medicine, 65 Tsuruma-cho, Showa-ku, Nagoya 466-8550, Japan
| |
Collapse
|
48
|
Buitrago-Delgado E, Nordin K, Rao A, Geary L, LaBonne C. NEURODEVELOPMENT. Shared regulatory programs suggest retention of blastula-stage potential in neural crest cells. Science 2015; 348:1332-5. [PMID: 25931449 PMCID: PMC4652794 DOI: 10.1126/science.aaa3655] [Citation(s) in RCA: 108] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2014] [Accepted: 03/26/2015] [Indexed: 12/18/2022]
Abstract
Neural crest cells, which are specific to vertebrates, arise in the ectoderm but can generate cell types that are typically categorized as mesodermal. This broad developmental potential persists past the time when most ectoderm-derived cells become lineage-restricted. The ability of neural crest to contribute mesodermal derivatives to the bauplan has raised questions about how this apparent gain in potential is achieved. Here, we describe shared molecular underpinnings of potency in neural crest and blastula cells. We show that in Xenopus, key neural crest regulatory factors are also expressed in blastula animal pole cells and promote pluripotency in both cell types. We suggest that neural crest cells may have evolved as a consequence of a subset of blastula cells retaining activity of the regulatory network underlying pluripotency.
Collapse
Affiliation(s)
- Elsy Buitrago-Delgado
- Department of Molecular Biosciences, Northwestern University, Evanston, IL 60208, USA
| | - Kara Nordin
- Department of Molecular Biosciences, Northwestern University, Evanston, IL 60208, USA
| | - Anjali Rao
- Department of Molecular Biosciences, Northwestern University, Evanston, IL 60208, USA
| | - Lauren Geary
- Department of Molecular Biosciences, Northwestern University, Evanston, IL 60208, USA
| | - Carole LaBonne
- Department of Molecular Biosciences, Northwestern University, Evanston, IL 60208, USA. Robert H. Lurie Comprehensive Cancer Center, Northwestern University, Evanston, IL 60208, USA.
| |
Collapse
|
49
|
Mohapatra SK, Sandhu A, Singh KP, Singla SK, Chauhan MS, Manik R, Palta P. Establishment of Trophectoderm Cell Lines from Buffalo (Bubalus bubalis) Embryos of Different Sources and Examination of In Vitro Developmental Competence, Quality, Epigenetic Status and Gene Expression in Cloned Embryos Derived from Them. PLoS One 2015; 10:e0129235. [PMID: 26053554 PMCID: PMC4459972 DOI: 10.1371/journal.pone.0129235] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2015] [Accepted: 05/06/2015] [Indexed: 11/26/2022] Open
Abstract
Despite being successfully used to produce live offspring in many species, somatic cell nuclear transfer (NT) has had a limited applicability due to very low (>1%) live birth rate because of a high incidence of pregnancy failure, which is mainly due to placental dysfunction. Since this may be due to abnormalities in the trophectoderm (TE) cell lineage, TE cells can be a model to understand the placental growth disorders seen after NT. We isolated and characterized buffalo TE cells from blastocysts produced by in vitro fertilization (TE-IVF) and Hand-made cloning (TE-HMC), and compared their growth characteristics and gene expression, and developed a feeder-free culture system for their long-term culture. The TE-IVF cells were then used as donor cells to produce HMC embryos following which their developmental competence, quality, epigenetic status and gene expression were compared with those of HMC embryos produced using fetal or adult fibroblasts as donor cells. We found that although TE-HMC and TE-IVF cells have a similar capability to grow in culture, significant differences exist in gene expression levels between them and between IVF and HMC embryos from which they are derived, which may have a role in the placental abnormalities associated with NT pregnancies. Although TE cells can be used as donor cells for producing HMC blastocysts, their developmental competence and quality is lower than that of blastocysts produced from fetal or adult fibroblasts. The epigenetic status and expression level of many important genes is different in HMC blastocysts produced using TE cells or fetal or adult fibroblasts or those produced by IVF.
Collapse
Affiliation(s)
| | - Anjit Sandhu
- Animal Biotechnology Centre, National Dairy Research Institute, Karnal, India
| | - Karn Pratap Singh
- Animal Biotechnology Centre, National Dairy Research Institute, Karnal, India
| | - Suresh Kumar Singla
- Animal Biotechnology Centre, National Dairy Research Institute, Karnal, India
| | | | - Radheysham Manik
- Animal Biotechnology Centre, National Dairy Research Institute, Karnal, India
| | - Prabhat Palta
- Animal Biotechnology Centre, National Dairy Research Institute, Karnal, India
- * E-mail:
| |
Collapse
|
50
|
Tadeu AMB, Lin S, Hou L, Chung L, Zhong M, Zhao H, Horsley V. Transcriptional profiling of ectoderm specification to keratinocyte fate in human embryonic stem cells. PLoS One 2015; 10:e0122493. [PMID: 25849374 PMCID: PMC4388500 DOI: 10.1371/journal.pone.0122493] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2014] [Accepted: 02/22/2015] [Indexed: 11/18/2022] Open
Abstract
In recent years, several studies have shed light into the processes that regulate epidermal specification and homeostasis. We previously showed that a broad-spectrum γ-secretase inhibitor DAPT promoted early keratinocyte specification in human embryonic stem cells triggered to undergo ectoderm specification. Here, we show that DAPT accelerates human embryonic stem cell differentiation and induces expression of the ectoderm protein AP2. Furthermore, we utilize RNA sequencing to identify several candidate regulators of ectoderm specification including those involved in epithelial and epidermal development in human embryonic stem cells. Genes associated with transcriptional regulation and growth factor activity are significantly enriched upon DAPT treatment during specification of human embryonic stem cells to the ectoderm lineage. The human ectoderm cell signature identified in this study contains several genes expressed in ectodermal and epithelial tissues. Importantly, these genes are also associated with skin disorders and ectodermal defects, providing a platform for understanding the biology of human epidermal keratinocyte development under diseased and homeostatic conditions.
Collapse
Affiliation(s)
- Ana Mafalda Baptista Tadeu
- Yale University, Department of Molecular, Cell and Developmental Biology, New Haven, CT, 06511, United States of America
| | - Samantha Lin
- Yale University, Department of Molecular, Cell and Developmental Biology, New Haven, CT, 06511, United States of America
| | - Lin Hou
- Yale University, Department of Biostatistics, Yale School of Public Health, New Haven, CT, 06520, United States of America
| | - Lisa Chung
- Yale University, Department of Biostatistics, Yale School of Public Health, New Haven, CT, 06520, United States of America
| | - Mei Zhong
- Yale University, Yale Stem Cell Center, Genomics Facility, New Haven, CT, 06520, United States of America
| | - Hongyu Zhao
- Yale University, Department of Biostatistics, Yale School of Public Health, New Haven, CT, 06520, United States of America
| | - Valerie Horsley
- Yale University, Department of Molecular, Cell and Developmental Biology, New Haven, CT, 06511, United States of America
- * E-mail:
| |
Collapse
|