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Asashima M, Satou-Kobayashi Y. Spemann-Mangold organizer and mesoderm induction. Cells Dev 2024:203903. [PMID: 38295873 DOI: 10.1016/j.cdev.2024.203903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Revised: 01/23/2024] [Accepted: 01/24/2024] [Indexed: 02/09/2024]
Abstract
The discovery of the Spemann-Mangold organizer strongly influenced subsequent research on embryonic induction, with research aiming to elucidate the molecular characteristics of organizer activity being currently underway. Herein, we review the history of research on embryonic induction, and describe how the mechanisms of induction phenomena and developmental processes have been investigated. Classical experiments investigating the differentiation capacity and inductive activity of various embryonic regions were conducted by many researchers, and important theories of region-specific induction and the concept for chain of induction were proposed. The transition from experimental embryology to developmental biology has enabled us to understand the mechanisms of embryonic induction at the molecular level. Consequently, many inducing substances and molecules such as transcriptional factors and peptide growth factors involved in the organizer formation were identified. One of peptide growth factors, activin, acts as a mesoderm- and endoderm-inducing substance. Activin induces several tissues and organs from the undifferentiated cell mass of amphibian embryos in a concentration-dependent manner. We review the extent to which we can control in vitro organogenesis from undifferentiated cells, and discuss the application to stem cell-based regenerative medicine based on insights gained from animal experiments, such as in amphibians.
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Affiliation(s)
- Makoto Asashima
- Advanced Comprehensive Research Organization, Teikyo University, 2-11-1 Kaga, Itabashi-ku, Tokyo 173-0003, Japan.
| | - Yumeko Satou-Kobayashi
- Advanced Comprehensive Research Organization, Teikyo University, 2-11-1 Kaga, Itabashi-ku, Tokyo 173-0003, Japan
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Satou-Kobayashi Y, Kim JD, Fukamizu A, Asashima M. Temporal transcriptomic profiling reveals dynamic changes in gene expression of Xenopus animal cap upon activin treatment. Sci Rep 2021; 11:14537. [PMID: 34267234 PMCID: PMC8282838 DOI: 10.1038/s41598-021-93524-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Accepted: 06/23/2021] [Indexed: 02/06/2023] Open
Abstract
Activin, a member of the transforming growth factor-β (TGF-β) superfamily of proteins, induces various tissues from the amphibian presumptive ectoderm, called animal cap explants (ACs) in vitro. However, it remains unclear how and to what extent the resulting cells recapitulate in vivo development. To comprehensively understand whether the molecular dynamics during activin-induced ACs differentiation reflect the normal development, we performed time-course transcriptome profiling of Xenopus ACs treated with 50 ng/mL of activin A, which predominantly induced dorsal mesoderm. The number of differentially expressed genes (DEGs) in response to activin A increased over time, and totally 9857 upregulated and 6663 downregulated DEGs were detected. 1861 common upregulated DEGs among all Post_activin samples included several Spemann's organizer genes. In addition, the temporal transcriptomes were clearly classified into four distinct groups in correspondence with specific features, reflecting stepwise differentiation into mesoderm derivatives, and a decline in the regulation of nuclear envelop and golgi. From the set of early responsive genes, we also identified the suppressor of cytokine signaling 3 (socs3) as a novel activin A-inducible gene. Our transcriptome data provide a framework to elucidate the transcriptional dynamics of activin-driven AC differentiation, reflecting the molecular characteristics of early normal embryogenesis.
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Affiliation(s)
- Yumeko Satou-Kobayashi
- grid.264706.10000 0000 9239 9995Strategic Innovation and Research Center, Teikyo University, 2-11-1 Kaga, Itabashi-ku, Tokyo, 173-8605 Japan ,grid.264706.10000 0000 9239 9995Advanced Comprehensive Research Organization, Teikyo University, 2-11-1 Kaga, Itabashi-ku, Tokyo, 173-8605 Japan ,grid.20515.330000 0001 2369 4728Life Science Center for Survival Dynamics, Tsukuba Advanced Research Alliance (TARA), University of Tsukuba, 1-1-1, Tsukuba, Tennoudai Ibaraki 305-8577 Japan
| | - Jun-Dal Kim
- grid.20515.330000 0001 2369 4728Life Science Center for Survival Dynamics, Tsukuba Advanced Research Alliance (TARA), University of Tsukuba, 1-1-1, Tsukuba, Tennoudai Ibaraki 305-8577 Japan ,grid.267346.20000 0001 2171 836XDivision of Complex Bioscience Research, Department of Research and Development, Institute of National Medicine, University of Toyama, 2630 Sugitani, Toyama, 930-0194 Japan
| | - Akiyoshi Fukamizu
- grid.20515.330000 0001 2369 4728Life Science Center for Survival Dynamics, Tsukuba Advanced Research Alliance (TARA), University of Tsukuba, 1-1-1, Tsukuba, Tennoudai Ibaraki 305-8577 Japan
| | - Makoto Asashima
- grid.264706.10000 0000 9239 9995Strategic Innovation and Research Center, Teikyo University, 2-11-1 Kaga, Itabashi-ku, Tokyo, 173-8605 Japan ,grid.264706.10000 0000 9239 9995Advanced Comprehensive Research Organization, Teikyo University, 2-11-1 Kaga, Itabashi-ku, Tokyo, 173-8605 Japan ,grid.20515.330000 0001 2369 4728Life Science Center for Survival Dynamics, Tsukuba Advanced Research Alliance (TARA), University of Tsukuba, 1-1-1, Tsukuba, Tennoudai Ibaraki 305-8577 Japan
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Abstract
Bone morphogenetic proteins (BMPs), together with the eponymous transforming growth factor (TGF) β and the Activins form the TGFβ superfamily of ligands. This protein family comprises more than 30 structurally highly related proteins, which determine formation, maintenance, and regeneration of tissues and organs. Their importance for the development of multicellular organisms is evident from their existence in all vertebrates as well as nonvertebrate animals. From their highly specific functions in vivo either a strict relation between a particular ligand and its cognate cellular receptor and/or a stringent regulation to define a distinct temperospatial expression pattern for the various ligands and receptor is expected. However, only a limited number of receptors are found to serve a large number of ligands thus implicating highly promiscuous ligand-receptor interactions instead. Since in tissues a multitude of ligands are often found, which signal via a highly overlapping set of receptors, this raises the question how such promiscuous interactions between different ligands and their receptors can generate concerted and highly specific cellular signals required during embryonic development and tissue homeostasis.
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Affiliation(s)
- Thomas D Mueller
- Department Plant Physiology and Biophysics, Julius-von-Sachs Institute of the University Wuerzburg, Wuerzburg, Germany.
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Tadjuidje E, Cha SW, Louza M, Wylie C, Heasman J. The functions of maternal Dishevelled 2 and 3 in the early Xenopus embryo. Dev Dyn 2011; 240:1727-36. [PMID: 21618643 DOI: 10.1002/dvdy.22671] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/02/2011] [Indexed: 02/03/2023] Open
Abstract
Of the three Dishevelled (Dvl) genes, only Dvl2 and Dvl3 are maternally encoded in the frog, Xenopus laevis. We show here by loss of function analysis that single depletion of either Dvl2 or Dvl3 from the oocyte causes the same embryonic phenotype. We find that the effects of loss of function of Dvl2 and 3 together are additive, and that the proteins physically interact, suggesting that both are required in the same complex. We show that maternal Dvl2 and 3 are required for convergence extension movements downstream of the dorsally localized signaling pathway activated by Xnr3, but not downstream of the pathway activated by activin. Also, depletion of maternal Dvl2 and 3 mRNAs causes the up-regulation of a subset of zygotic ectodermal genes, including Foxi1e, with surprisingly no significant effect on the canonical Wnt direct target genes Siamois and Xnr3. We suggest that the likely reason for continued expression of the Wnt target genes in Dvl2/3-depleted embryos is that maternal Dvl mRNA depletion is insufficient to deplete stored punctae of Dvl protein in the oocyte cortex, which may transduce dorsal signaling after fertilization.
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Affiliation(s)
- Emmanuel Tadjuidje
- Division of Developmental Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
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Doss MX, Chen S, Winkler J, Hippler-Altenburg R, Odenthal M, Wickenhauser C, Balaraman S, Schulz H, Hummel O, Hübner N, Ghosh-Choudhury N, Sotiriadou I, Hescheler J, Sachinidis A. Transcriptomic and phenotypic analysis of murine embryonic stem cell derived BMP2+ lineage cells: an insight into mesodermal patterning. Genome Biol 2008; 8:R184. [PMID: 17784959 PMCID: PMC2375022 DOI: 10.1186/gb-2007-8-9-r184] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2006] [Revised: 05/30/2007] [Accepted: 09/04/2007] [Indexed: 01/08/2023] Open
Abstract
Transcriptome analysis of BMP2+ cells in comparison to the undifferentiated BMP2 ES cells and the control population from 7-day old embryoid bodies led to the identification of 479 specifically upregulated and 193 downregulated transcripts. Background Bone morphogenetic protein (BMP)2 is a late mesodermal marker expressed during vertebrate development and plays a crucial role in early embryonic development. The nature of the BMP2-expressing cells during the early stages of embryonic development, their transcriptome and cell phenotypes developed from these cells have not yet been characterized. Results We generated a transgenic BMP2 embryonic stem (ES) cell lineage expressing both puromycin acetyltransferase and enhanced green fluorescent protein (EGFP) driven by the BMP2 promoter. Puromycin resistant and EGFP positive BMP2+ cells with a purity of over 93% were isolated. Complete transcriptome analysis of BMP2+ cells in comparison to the undifferentiated ES cells and the control population from seven-day-old embryoid bodies (EBs; intersection of genes differentially expressed between undifferentiated ES cells and BMP2+ EBs as well as differentially expressed between seven-day-old control EBs and BMP2+ EBs by t-test, p < 0.01, fold change >2) by microarray analysis led to identification of 479 specifically upregulated and 193 downregulated transcripts. Transcription factors, apoptosis promoting factors and other signaling molecules involved in early embryonic development are mainly upregulated in BMP2+ cells. Long-term differentiation of the BMP2+ cells resulted in neural crest stem cells (NCSCs), smooth muscle cells, epithelial-like cells, neuronal-like cells, osteoblasts and monocytes. Interestingly, development of cardiomyocytes from the BMP2+ cells requires secondary EB formation. Conclusion This is the first study to identify the complete transcriptome of BMP2+ cells and cell phenotypes from a mesodermal origin, thus offering an insight into the role of BMP2+ cells during embryonic developmental processes in vivo.
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Affiliation(s)
- Michael Xavier Doss
- Institute of Neurophysiology, University of Cologne, Robert-Koch Str. 39, 50931 Cologne, Germany
| | - Shuhua Chen
- Institute of Neurophysiology, University of Cologne, Robert-Koch Str. 39, 50931 Cologne, Germany
| | - Johannes Winkler
- Institute of Neurophysiology, University of Cologne, Robert-Koch Str. 39, 50931 Cologne, Germany
| | - Rita Hippler-Altenburg
- Institute of Neurophysiology, University of Cologne, Robert-Koch Str. 39, 50931 Cologne, Germany
| | - Margareta Odenthal
- Institute of Pathology, University of Cologne, Joseph-Stelzmann-Str. 9, 50931 Cologne, Germany
| | - Claudia Wickenhauser
- Institute of Pathology, University of Cologne, Joseph-Stelzmann-Str. 9, 50931 Cologne, Germany
| | - Sridevi Balaraman
- Institute of Pathology, University of Cologne, Joseph-Stelzmann-Str. 9, 50931 Cologne, Germany
| | - Herbert Schulz
- Max-Delbrueck-Center for Molecular Medicine - MDC, Robert-Rössle Str. 10, 13092 Berlin, Germany
| | - Oliver Hummel
- Max-Delbrueck-Center for Molecular Medicine - MDC, Robert-Rössle Str. 10, 13092 Berlin, Germany
| | - Norbert Hübner
- Max-Delbrueck-Center for Molecular Medicine - MDC, Robert-Rössle Str. 10, 13092 Berlin, Germany
| | - Nandini Ghosh-Choudhury
- Department of Pathology, The University of Texas Health Science Center at San Antonio, TX 78229, USA
| | - Isaia Sotiriadou
- Institute of Neurophysiology, University of Cologne, Robert-Koch Str. 39, 50931 Cologne, Germany
| | - Jürgen Hescheler
- Institute of Neurophysiology, University of Cologne, Robert-Koch Str. 39, 50931 Cologne, Germany
| | - Agapios Sachinidis
- Institute of Neurophysiology, University of Cologne, Robert-Koch Str. 39, 50931 Cologne, Germany
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Asashima M, Michiue T, Kurisaki A. Elucidation of the role of activin in organogenesis using a multiple organ induction system with amphibian and mouse undifferentiated cells in vitro. Dev Growth Differ 2008; 50 Suppl 1:S35-45. [DOI: 10.1111/j.1440-169x.2008.00990.x] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Asashima M, Kurisaki A, Michiue T. In Vitro Control of Organogenesis by ActivinA Treatment of Amphibian and Mouse Stem Cells. Stem Cells 2008. [DOI: 10.1007/978-1-4020-8274-0_7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Gregor T, Wieschaus EF, McGregor AP, Bialek W, Tank DW. Stability and nuclear dynamics of the bicoid morphogen gradient. Cell 2007; 130:141-52. [PMID: 17632061 PMCID: PMC2253672 DOI: 10.1016/j.cell.2007.05.026] [Citation(s) in RCA: 353] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2006] [Revised: 02/15/2007] [Accepted: 05/03/2007] [Indexed: 11/30/2022]
Abstract
Patterning in multicellular organisms results from spatial gradients in morphogen concentration, but the dynamics of these gradients remain largely unexplored. We characterize, through in vivo optical imaging, the development and stability of the Bicoid morphogen gradient in Drosophila embryos that express a Bicoid-eGFP fusion protein. The gradient is established rapidly (approximately 1 hr after fertilization), with nuclear Bicoid concentration rising and falling during mitosis. Interphase levels result from a rapid equilibrium between Bicoid uptake and removal. Initial interphase concentration in nuclei in successive cycles is constant (+/-10%), demonstrating a form of gradient stability, but it subsequently decays by approximately 30%. Both direct photobleaching measurements and indirect estimates of Bicoid-eGFP diffusion constants (D < or = 1 microm(2)/s) provide a consistent picture of Bicoid transport on short ( approximately min) time scales but challenge traditional models of long-range gradient formation. A new model is presented emphasizing the possible role of nuclear dynamics in shaping and scaling the gradient.
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Affiliation(s)
- Thomas Gregor
- Lewis-Sigler Institute for Integrative Genomics, Princeton University, Princeton, New Jersey 08544, USA.
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Furue M, Myoishi Y, Fukui Y, Ariizumi T, Okamoto T, Asashima M. Activin A induces craniofacial cartilage from undifferentiated Xenopus ectoderm in vitro. Proc Natl Acad Sci U S A 2002; 99:15474-9. [PMID: 12424341 PMCID: PMC137741 DOI: 10.1073/pnas.242597399] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2001] [Accepted: 10/03/2002] [Indexed: 12/27/2022] Open
Abstract
Activin A has potent mesoderm-inducing activity in amphibian embryos and induces various mesodermal tissues in vitro from the isolated presumptive ectoderm. By using a sandwich culture method established to examine activin A activity, we previously demonstrated that activin-treated ectoderm can function as both a head and trunk-tail organizer, depending on the concentration of activin A. By using activin A and undifferentiated presumptive ectoderm, it is theoretically possible to reproduce embryonic induction. Here, we test this hypothesis by studying the induction of cartilage tissue by using the sandwich-culture method. In the sandwiched explants, the mesenchymal cell condensation expressed type II collagen and cartilage homeoprotein-1 mRNA, and subsequently, cartilage were induced as they are in vivo. goosecoid (gsc) mRNA was prominently expressed in the cartilage in the explants. Xenopus distal-less 4 (X-dll4) mRNA was expressed throughout the explants. In Xenopus embryos, gsc expression is restricted to the cartilage of the lower jaw, and X-dll4 is widely expressed in the ventral head region, including craniofacial cartilage. These finding suggest that the craniofacial cartilage, especially lower jaw cartilage, was induced in the activin-treated sandwiched explants. In addition, a normal developmental pattern was recapitulated at the histological and genetic level. This work also suggests that the craniofacial cartilage-induction pathway is downstream of activin A. This study presents a model system suitable for the in vitro analysis of craniofacial cartilage induction in vertebrates.
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Affiliation(s)
- Miho Furue
- Department of Biochemistry and Molecular Biology, Kanagawa Dental College, Yokosuka 238-8580, Japan
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10
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Flickinger RA. Cell proliferation and protein synthesis as initial factors in determination of axial polarity. Dev Growth Differ 2001; 43:223-7. [PMID: 11422287 DOI: 10.1046/j.1440-169x.2001.00567.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
The rate of cell proliferation relative to that of protein synthesis appears to have an initial role in establishment of axial polarities in developing animal embryos. An increase in this ratio leads to anterior or dorsal differentiation, while reduction allows posterior or ventral differentiation in a number of organisms. The role that various growth factors play in the regulation of proliferation and protein synthesis is examined.
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Affiliation(s)
- R A Flickinger
- Department of Biological Sciences, State University of New York, Buffalo, New York 14260, USA. raf53@hotmail .com
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Asashima M, Ariizumi T, Malacinski GM. In vitro control of organogenesis and body patterning by activin during early amphibian development. Comp Biochem Physiol B Biochem Mol Biol 2000; 126:169-78. [PMID: 10874164 DOI: 10.1016/s0305-0491(00)00195-4] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
In the process of amphibian development, an embryonic body plan is established through cell division, sequential gene expression, morphogenesis and cell differentiation. The mechanism of body patterning is complex and includes multiple induction events. Activin, a TGF-beta family protein, can induce several kinds of mesodermal and endodermal tissues in animal cap explants in a dose-dependent manner. In a recent study of the role of activin in organogenesis, we succeeded in raising a beating heart by treating animal caps with a high concentration of activin. Activin also participates in kidney organogenesis in combination with retinoic acid. An embryonic kidney induced by activin and retinoic acid in vitro can function in vivo when it is transplanted into a larva in which pronephros rudiments have already been removed. Further, the activin-treated animal caps clearly show organizer actions that are closely related to body patterning along the anteroposterior axis. These experiments will help to serve as a model system for understanding organogenesis and body patterning at the cellular and molecular levels.
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Affiliation(s)
- M Asashima
- Department of Life Sciences (Biology), Graduate School of Arts and Sciences, The University of Tokyo, Japan.
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Asashima M, Kinoshita K, Ariizumi T, Malacinski GM. Role of activin and other peptide growth factors in body patterning in the early amphibian embryo. INTERNATIONAL REVIEW OF CYTOLOGY 1999; 191:1-52. [PMID: 10343391 DOI: 10.1016/s0074-7696(08)60156-4] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
Abstract
The amphibian body plan is established as the result of a series of inductive interactions. During early cleavage stages cells in the vegetal hemisphere induce overlying animal hemisphere cells to form mesoderm. The interaction represents the first major body-patterning event and is mediated by peptide growth factors. Various peptide growth factors have been implicated in mesoderm development, including most notably members of the transforming growth factor-beta superfamily. Identification of the so-called "natural" inducer from among the several candidate peptide growth factors is being achieved by employing several experimental strategies, including the use of a tissue explant assay for testing potential inducers, cloning of marker genes as indices of early induction events, and microinjection of altered peptide growth factor receptors to disrupt normal embryonic inductions. Activin emerges as the most likely choice for assignment of the role of endogenous mesoderm inducer, because it currently best fulfills the rigorous set of criteria expected of such an important embryonic signaling molecule. Activin, however, may not act alone in mesoderm induction. Other peptide growth factors such as fibroblast growth factor might be involved, especially in the regional patterning of the mesoderm. In addition, several genes (e.g., Wnt and noggin), which are expressed after the mesoderm is initially induced, probably assist in further definition of the mesoderm pattern. Following mesoderm induction, the primary embryonic organizer tissue (first described in 1924 by Spemann) develops and contributes further to body patterning by its action as a neural inducer. Peptide growth factors such as activin may also be involved in the inductive event, either directly (by facilitating gene expression) or indirectly (by serving to constrain pathways).
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Affiliation(s)
- M Asashima
- Department of Life Science, University of Tokyo, Japan
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Ariizumi T, Takano K, Ninomiya H, Asashima M. Activin-Treated Urodele Animal Caps: I. Mesoderm and Endoderm Differentiation of Salamander Animal Caps. Zoolog Sci 1998. [DOI: 10.2108/zsj.15.887] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Abstract
Neural differentiation of the ectoderm is inhibited by bone morphogenetic protein 4 (BMP-4) in amphibia as well as mammalia. This inhibition is released by neural inducing factor(s), which are secreted from the dorsal mesoderm. Masked neuralizing factor(s) are already present in the ectoderm before induction. In homogenates from Xenopus oocytes and embryos neural inducing factors were found in the supernatant (centrifuged at 105000 g), in small vesicles and a ribonucleoprotein fraction. A neuralizing factor, which is a protein of small size, has been partially purified from Xenopus gastrulae. Genes that are expressed in the dorsal mesoderm and involved in the de novo synthesis of neuralizing factor(s) have been cloned. The differentiation of cells with a neuronal fate starts in the neural plate immediately after neural induction. Genes homologous to the Notch and Delta genes of lateral inhibition in insects are involved in this process.
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Affiliation(s)
- H Tiedemann
- Institut für Molekularbiologie und Biochemie der Freien Universität Berlin, Germany
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Tiedemann H, Asashima M, Born J, Grunz H, Knochel W, Tiedemann H. Determination, induction and pattern formation in early amphibian embryos. Dev Growth Differ 1996. [DOI: 10.1046/j.1440-169x.1996.t01-2-00002.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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