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Wang H, Bollepogu Raja KK, Yeung K, Morrison CA, Terrizzano A, Khodadadi-Jamayran A, Chen P, Jordan A, Fritsch C, Sprecher SG, Mardon G, Treisman JE. Synergistic activation by Glass and Pointed promotes neuronal identity in the Drosophila eye disc. Nat Commun 2024; 15:7091. [PMID: 39154080 PMCID: PMC11330500 DOI: 10.1038/s41467-024-51429-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2024] [Accepted: 08/06/2024] [Indexed: 08/19/2024] Open
Abstract
The integration of extrinsic signaling with cell-intrinsic transcription factors can direct progenitor cells to differentiate into distinct cell fates. In the developing Drosophila eye, differentiation of photoreceptors R1-R7 requires EGFR signaling mediated by the transcription factor Pointed, and our single-cell RNA-Seq analysis shows that the same photoreceptors require the eye-specific transcription factor Glass. We find that ectopic expression of Glass and activation of EGFR signaling synergistically induce neuronal gene expression in the wing disc in a Pointed-dependent manner. Targeted DamID reveals that Glass and Pointed share many binding sites in the genome of developing photoreceptors. Comparison with transcriptomic data shows that Pointed and Glass induce photoreceptor differentiation through intermediate transcription factors, including the redundant homologs Scratch and Scrape, as well as directly activating neuronal effector genes. Our data reveal synergistic activation of a multi-layered transcriptional network as the mechanism by which EGFR signaling induces neuronal identity in Glass-expressing cells.
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Affiliation(s)
- Hongsu Wang
- Department of Cell Biology, NYU Grossman School of Medicine, New York, NY, USA
| | | | - Kelvin Yeung
- Department of Pathology and Immunology, Baylor College of Medicine, Houston, TX, USA
| | - Carolyn A Morrison
- Department of Cell Biology, NYU Grossman School of Medicine, New York, NY, USA
- 10x Genomics, Pleasanton, CA, 94588, USA
| | - Antonia Terrizzano
- Department of Cell Biology, NYU Grossman School of Medicine, New York, NY, USA
- Biology of Centrosomes and Genetic Instability Team, Curie Institute, PSL Research University, CNRS, UMR144, 12 rue Lhomond, Paris, 75005, France
| | | | - Phoenix Chen
- Department of Cell Biology, NYU Grossman School of Medicine, New York, NY, USA
- Department of Biology, Boston University, Boston, MA, USA
| | - Ashley Jordan
- Department of Cell Biology, NYU Grossman School of Medicine, New York, NY, USA
| | - Cornelia Fritsch
- Department of Biology, Université de Fribourg, Fribourg, Switzerland
| | - Simon G Sprecher
- Department of Biology, Université de Fribourg, Fribourg, Switzerland
| | - Graeme Mardon
- Department of Pathology and Immunology, Baylor College of Medicine, Houston, TX, USA
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, USA
| | - Jessica E Treisman
- Department of Cell Biology, NYU Grossman School of Medicine, New York, NY, USA.
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2
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Zambrano-Tipan D, Narváez-Padilla V, Reynaud E. Escargot a Snail superfamily member and its multiple roles in Drosophila melanogaster development. J Cell Physiol 2024. [PMID: 38572978 DOI: 10.1002/jcp.31269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Revised: 03/21/2024] [Accepted: 03/27/2024] [Indexed: 04/05/2024]
Abstract
The Snail superfamily of transcription factors plays a crucial role in metazoan development; one of the most important vertebrate members of this family is Snai1 which is orthologous to the Drosophila melanogaster esg gene. This review offers a comprehensive examination of the roles of the esg gene in Drosophila development, covering its expression pattern and downstream targets, and draws parallels between the vertebrate Snai1 family proteins on controlling the epithelial-to-mesenchymal transition and esg. This gene regulates stemness, ploidy, and pluripontency. esg is expressed in various tissues during development, including the gut, imaginal discs, and neuroblasts. The functions of the esg include the suppression of differentiation in intestinal stem cells and the preservation of diploidy in imaginal cells. In the nervous system development, esg expression also inhibits neuroblast differentiation, thus regulating the number of neurons and the moment in development of neuronal differentiation. Loss of esg function results in diverse developmental defects, including defects in intestinal stem cell maintenance and differentiation, and alters imaginal disc and nervous system development. Expression levels of esg also play a role in regulating longevity and metabolism in adult stages. This review provides an overview of the current understanding of esg's developmental role, emphasizing cellular and tissue effects that arise from its loss of function. The insights gained may contribute to a better understanding of evolutionary conserved developmental mechanisms and certain metabolic diseases.
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Affiliation(s)
- Diego Zambrano-Tipan
- Departamento de Genética del Desarrollo y Fisiología Molecular, Instituto de Biotecnología Universidad Nacional Autónoma de México, Cuernavaca, Morelos, México
| | - Verónica Narváez-Padilla
- Centro de Investigación en Dinámica Celular, Universidad Autónoma del Estado de Morelos, Cuernavaca, Morelos, México
| | - Enrique Reynaud
- Departamento de Genética del Desarrollo y Fisiología Molecular, Instituto de Biotecnología Universidad Nacional Autónoma de México, Cuernavaca, Morelos, México
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Park L, Luth ES, Jones K, Hofer J, Nguyen I, Watters KE, Juo P. The Snail transcription factor CES-1 regulates glutamatergic behavior in C. elegans. PLoS One 2021; 16:e0245587. [PMID: 33529210 PMCID: PMC7853468 DOI: 10.1371/journal.pone.0245587] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Accepted: 01/04/2021] [Indexed: 11/18/2022] Open
Abstract
Regulation of AMPA-type glutamate receptor (AMPAR) expression and function alters synaptic strength and is a major mechanism underlying synaptic plasticity. Although transcription is required for some forms of synaptic plasticity, the transcription factors that regulate AMPA receptor expression and signaling are incompletely understood. Here, we identify the Snail family transcription factor ces-1 in an RNAi screen for conserved transcription factors that regulate glutamatergic behavior in C. elegans. ces-1 was originally discovered as a selective cell death regulator of neuro-secretory motor neuron (NSM) and I2 interneuron sister cells in C. elegans, and has almost exclusively been studied in the NSM cell lineage. We found that ces-1 loss-of-function mutants have defects in two glutamatergic behaviors dependent on the C. elegans AMPA receptor GLR-1, the mechanosensory nose-touch response and spontaneous locomotion reversals. In contrast, ces-1 gain-of-function mutants exhibit increased spontaneous reversals, and these are dependent on glr-1 consistent with these genes acting in the same pathway. ces-1 mutants have wild type cholinergic neuromuscular junction function, suggesting that they do not have a general defect in synaptic transmission or muscle function. The effect of ces-1 mutation on glutamatergic behaviors is not due to ectopic cell death of ASH sensory neurons or GLR-1-expressing neurons that mediate one or both of these behaviors, nor due to an indirect effect on NSM sister cell deaths. Rescue experiments suggest that ces-1 may act, in part, in GLR-1-expressing neurons to regulate glutamatergic behaviors. Interestingly, ces-1 mutants suppress the increased reversal frequencies stimulated by a constitutively-active form of GLR-1. However, expression of glr-1 mRNA or GFP-tagged GLR-1 was not decreased in ces-1 mutants suggesting that ces-1 likely promotes GLR-1 function. This study identifies a novel role for ces-1 in regulating glutamatergic behavior that appears to be independent of its canonical role in regulating cell death in the NSM cell lineage.
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Affiliation(s)
- Lidia Park
- Department of Developmental, Molecular and Chemical Biology, Tufts University School of Medicine, Boston, Massachusetts, United States of America
- Graduate Program in Cell, Developmental and Molecular Biology, Graduate School of Biomedical Sciences, Tufts University School of Medicine, Boston, Massachusetts, United States of America
| | - Eric S. Luth
- Department of Biology, Simmons University, Boston, Massachusetts, United States of America
| | - Kelsey Jones
- Department of Developmental, Molecular and Chemical Biology, Tufts University School of Medicine, Boston, Massachusetts, United States of America
| | - Julia Hofer
- Department of Developmental, Molecular and Chemical Biology, Tufts University School of Medicine, Boston, Massachusetts, United States of America
| | - Irene Nguyen
- Department of Biology, Simmons University, Boston, Massachusetts, United States of America
| | - Katherine E. Watters
- Graduate Program in Neuroscience, Graduate School of Biomedical Sciences, Tufts University School of Medicine, Boston, Massachusetts, United States of America
| | - Peter Juo
- Department of Developmental, Molecular and Chemical Biology, Tufts University School of Medicine, Boston, Massachusetts, United States of America
- * E-mail:
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Arefin B, Parvin F, Bahrampour S, Stadler CB, Thor S. Drosophila Neuroblast Selection Is Gated by Notch, Snail, SoxB, and EMT Gene Interplay. Cell Rep 2020; 29:3636-3651.e3. [PMID: 31825841 DOI: 10.1016/j.celrep.2019.11.038] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Revised: 10/20/2019] [Accepted: 11/08/2019] [Indexed: 12/14/2022] Open
Abstract
In the developing Drosophila central nervous system (CNS), neural progenitor (neuroblast [NB]) selection is gated by lateral inhibition, controlled by Notch signaling and proneural genes. However, proneural mutants still generate many NBs, indicating the existence of additional proneural genes. Moreover, recent studies reveal involvement of key epithelial-mesenchymal transition (EMT) genes in NB selection, but the regulatory interplay between Notch signaling and the EMT machinery is unclear. We find that SoxNeuro (SoxB family) and worniu (Snail family) are integrated with the Notch pathway, and constitute the missing proneural genes. Notch signaling, the proneural, SoxNeuro, and worniu genes regulate key EMT genes to orchestrate the NB selection process. Hence, we uncover an expanded lateral inhibition network for NB selection and demonstrate its link to key players in the EMT machinery. The evolutionary conservation of the genes involved suggests that the Notch-SoxB-Snail-EMT network may control neural progenitor selection in many other systems.
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Affiliation(s)
- Badrul Arefin
- Department of Clinical and Experimental Medicine, Linkoping University, 58185 Linkoping, Sweden
| | - Farjana Parvin
- Department of Clinical and Experimental Medicine, Linkoping University, 58185 Linkoping, Sweden
| | - Shahrzad Bahrampour
- Department of Clinical and Experimental Medicine, Linkoping University, 58185 Linkoping, Sweden
| | - Caroline Bivik Stadler
- Department of Clinical and Experimental Medicine, Linkoping University, 58185 Linkoping, Sweden
| | - Stefan Thor
- Department of Clinical and Experimental Medicine, Linkoping University, 58185 Linkoping, Sweden; School of Biomedical Sciences, University of Queensland, St. Lucia, QLD 4072, Australia.
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Simon F, Ramat A, Louvet-Vallée S, Lacoste J, Burg A, Audibert A, Gho M. Shaping of Drosophila Neural Cell Lineages Through Coordination of Cell Proliferation and Cell Fate by the BTB-ZF Transcription Factor Tramtrack-69. Genetics 2019; 212:773-788. [PMID: 31073020 PMCID: PMC6614892 DOI: 10.1534/genetics.119.302234] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Accepted: 05/01/2019] [Indexed: 12/25/2022] Open
Abstract
Cell diversity in multicellular organisms relies on coordination between cell proliferation and the acquisition of cell identity. The equilibrium between these two processes is essential to assure the correct number of determined cells at a given time at a given place. Using genetic approaches and correlative microscopy, we show that Tramtrack-69 (Ttk69, a Broad-complex, Tramtrack and Bric-à-brac - Zinc Finger (BTB-ZF) transcription factor ortholog of the human promyelocytic leukemia zinc finger factor) plays an essential role in controlling this balance. In the Drosophila bristle cell lineage, which produces the external sensory organs composed by a neuron and accessory cells, we show that ttk69 loss-of-function leads to supplementary neural-type cells at the expense of accessory cells. Our data indicate that Ttk69 (1) promotes cell cycle exit of newborn terminal cells by downregulating CycE, the principal cyclin involved in S-phase entry, and (2) regulates cell-fate acquisition and terminal differentiation, by downregulating the expression of hamlet and upregulating that of Suppressor of Hairless, two transcription factors involved in neural-fate acquisition and accessory cell differentiation, respectively. Thus, Ttk69 plays a central role in shaping neural cell lineages by integrating molecular mechanisms that regulate progenitor cell cycle exit and cell-fate commitment.
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Affiliation(s)
- Françoise Simon
- Sorbonne Université, CNRS, Laboratoire de Biologie du Développement -Institut de Biologie Paris Seine (LBD-IBPS), Team « Cell cycle and cell determination", F-75005 Paris, France
| | - Anne Ramat
- Sorbonne Université, CNRS, Laboratoire de Biologie du Développement -Institut de Biologie Paris Seine (LBD-IBPS), Team « Cell cycle and cell determination", F-75005 Paris, France
| | - Sophie Louvet-Vallée
- Sorbonne Université, CNRS, Laboratoire de Biologie du Développement -Institut de Biologie Paris Seine (LBD-IBPS), Team « Cell cycle and cell determination", F-75005 Paris, France
| | - Jérôme Lacoste
- Sorbonne Université, CNRS, Laboratoire de Biologie du Développement -Institut de Biologie Paris Seine (LBD-IBPS), Team « Cell cycle and cell determination", F-75005 Paris, France
| | - Angélique Burg
- Sorbonne Université, CNRS, Laboratoire de Biologie du Développement -Institut de Biologie Paris Seine (LBD-IBPS), Team « Cell cycle and cell determination", F-75005 Paris, France
| | - Agnès Audibert
- Sorbonne Université, CNRS, Laboratoire de Biologie du Développement -Institut de Biologie Paris Seine (LBD-IBPS), Team « Cell cycle and cell determination", F-75005 Paris, France.
| | - Michel Gho
- Sorbonne Université, CNRS, Laboratoire de Biologie du Développement -Institut de Biologie Paris Seine (LBD-IBPS), Team « Cell cycle and cell determination", F-75005 Paris, France.
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6
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Symonenko AV, Roshina NV, Krementsova AV, Pasyukova EG. Reduced Neuronal Transcription of Escargot, the Drosophila Gene Encoding a Snail-Type Transcription Factor, Promotes Longevity. Front Genet 2018; 9:151. [PMID: 29760717 PMCID: PMC5936762 DOI: 10.3389/fgene.2018.00151] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Accepted: 04/12/2018] [Indexed: 12/11/2022] Open
Abstract
In recent years, several genes involved in complex neuron specification networks have been shown to control life span. However, information on these genes is scattered, and studies to discover new neuronal genes and gene cascades contributing to life span control are needed, especially because of the recognized role of the nervous system in governing homeostasis, aging, and longevity. Previously, we demonstrated that several genes that encode RNA polymerase II transcription factors and that are involved in the development of the nervous system affect life span in Drosophila melanogaster. Among other genes, escargot (esg) was demonstrated to be causally associated with an increase in the life span of male flies. Here, we present new data on the role of esg in life span control. We show that esg affects the life spans of both mated and unmated males and females to varying degrees. By analyzing the survival and locomotion of the esg mutants, we demonstrate that esg is involved in the control of aging. We show that increased longevity is caused by decreased esg transcription. In particular, we demonstrate that esg knockdown in the nervous system increased life span, directly establishing the involvement of the neuronal esg function in life span control. Our data invite attention to the mechanisms regulating the esg transcription rate, which is changed by insertions of DNA fragments of different sizes downstream of the structural part of the gene, indicating the direction of further research. Our data agree with the previously made suggestion that alterations in gene expression during development might affect adult lifespan, due to epigenetic patterns inherited in cell lineages or predetermined during the development of the structural and functional properties of the nervous system.
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Affiliation(s)
- Alexander V Symonenko
- Laboratory of Genome Variation, Institute of Molecular Genetics, Russian Academy of Sciences, Moscow, Russia
| | - Natalia V Roshina
- Laboratory of Genome Variation, Institute of Molecular Genetics, Russian Academy of Sciences, Moscow, Russia.,Laboratory of Genetic Basis of Biodiversity, N. I. Vavilov Institute of General Genetics, Russian Academy of Sciences, Moscow, Russia
| | - Anna V Krementsova
- Laboratory of Genome Variation, Institute of Molecular Genetics, Russian Academy of Sciences, Moscow, Russia.,Laboratory of Kinetics and Mechanisms of Enzymatic and Catalytic Reactions, N. M. Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, Moscow, Russia
| | - Elena G Pasyukova
- Laboratory of Genome Variation, Institute of Molecular Genetics, Russian Academy of Sciences, Moscow, Russia
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