1
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Schock EN, York JR, Li AP, Tu AY, LaBonne C. SoxB1 transcription factors are essential for initiating and maintaining neural plate border gene expression. Development 2024; 151:dev202693. [PMID: 38940470 DOI: 10.1242/dev.202693] [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: 01/30/2024] [Accepted: 06/17/2024] [Indexed: 06/29/2024]
Abstract
SoxB1 transcription factors (Sox2/3) are well known for their role in early neural fate specification in the embryo, but little is known about functional roles for SoxB1 factors in non-neural ectodermal cell types, such as the neural plate border (NPB). Using Xenopus laevis, we set out to determine whether SoxB1 transcription factors have a regulatory function in NPB formation. Here, we show that SoxB1 factors are necessary for NPB formation, and that prolonged SoxB1 factor activity blocks the transition from a NPB to a neural crest state. Using ChIP-seq, we demonstrate that Sox3 is enriched upstream of NPB genes in early NPB cells and in blastula stem cells. Depletion of SoxB1 factors in blastula stem cells results in downregulation of NPB genes. Finally, we identify Pou5f3 factors as potential Sox3 partners in regulating the formation of the NPB and show that their combined activity is needed for normal NPB gene expression. Together, these data identify a role for SoxB1 factors in the establishment and maintenance of the NPB, in part through partnership with Pou5f3 factors.
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Affiliation(s)
- Elizabeth N Schock
- Department of Molecular Biosciences, Northwestern University, Evanston, IL 60208, USA
| | - Joshua R York
- Department of Molecular Biosciences, Northwestern University, Evanston, IL 60208, USA
| | - Austin P Li
- Department of Molecular Biosciences, Northwestern University, Evanston, IL 60208, USA
| | - Ashlyn Y Tu
- Department of Molecular Biosciences, Northwestern University, Evanston, IL 60208, USA
| | - Carole LaBonne
- Department of Molecular Biosciences, Northwestern University, Evanston, IL 60208, USA
- NSF-Simons National Institute for Theory and Mathematics in Biology, 875 N Michigan Avenue, Chicago, IL 60611, USA
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2
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Berns HM, Watkins-Chow DE, Lu S, Louphrasitthiphol P, Zhang T, Brown KM, Moura-Alves P, Goding CR, Pavan WJ. Single-cell profiling of MC1R-inhibited melanocytes. Pigment Cell Melanoma Res 2024; 37:291-308. [PMID: 37972124 DOI: 10.1111/pcmr.13141] [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: 07/12/2023] [Revised: 09/15/2023] [Accepted: 10/05/2023] [Indexed: 11/19/2023]
Abstract
The human red hair color (RHC) trait is caused by increased pheomelanin (red-yellow) and reduced eumelanin (black-brown) pigment in skin and hair due to diminished melanocortin 1 receptor (MC1R) function. In addition, individuals harboring the RHC trait are predisposed to melanoma development. While MC1R variants have been established as causative of RHC and are a well-defined risk factor for melanoma, it remains unclear mechanistically why decreased MC1R signaling alters pigmentation and increases melanoma susceptibility. Here, we use single-cell RNA sequencing (scRNA-seq) of melanocytes isolated from RHC mouse models to define a MC1R-inhibited Gene Signature (MiGS) comprising a large set of previously unidentified genes which may be implicated in melanogenesis and oncogenic transformation. We show that one of the candidate MiGS genes, TBX3, a well-known anti-senescence transcription factor implicated in melanoma progression, binds both E-box and T-box elements to regulate genes associated with melanogenesis and senescence bypass. Our results provide key insights into further mechanisms by which melanocytes with reduced MC1R signaling may regulate pigmentation and offer new candidates of study toward understanding how individuals with the RHC phenotype are predisposed to melanoma.
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Affiliation(s)
- H Matthew Berns
- Genetic Disease Research Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, Maryland, USA
- Ludwig Institute for Cancer Research, Nuffield Department of Clinical Medicine, University of Oxford, Oxford, UK
| | - Dawn E Watkins-Chow
- Genetic Disease Research Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Sizhu Lu
- Ludwig Institute for Cancer Research, Nuffield Department of Clinical Medicine, University of Oxford, Oxford, UK
| | - Pakavarin Louphrasitthiphol
- Ludwig Institute for Cancer Research, Nuffield Department of Clinical Medicine, University of Oxford, Oxford, UK
- Department of Gastrointestinal and Hepato-Biliary-Pancreatic Surgery, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Tongwu Zhang
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, Maryland, USA
| | - Kevin M Brown
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, Maryland, USA
| | - Pedro Moura-Alves
- Ludwig Institute for Cancer Research, Nuffield Department of Clinical Medicine, University of Oxford, Oxford, UK
- i3S-Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, PT, Portugal
- IBMC-Instituto de Biologia Molecular e Celular, Universidade do Porto, Porto, PT, Portugal
| | - Colin R Goding
- Ludwig Institute for Cancer Research, Nuffield Department of Clinical Medicine, University of Oxford, Oxford, UK
| | - William J Pavan
- Genetic Disease Research Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, Maryland, USA
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3
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Manifacier I, Carlin G, Liu D, Vassaux M, Pieuchot L, Luchnikov V, Anselme K, Milan JL. In silico analysis shows that dynamic changes in curvature guide cell migration over long distances. Biomech Model Mechanobiol 2024; 23:315-333. [PMID: 37875692 DOI: 10.1007/s10237-023-01777-4] [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: 04/27/2023] [Accepted: 09/24/2023] [Indexed: 10/26/2023]
Abstract
In vitro experiments have shown that cell scale curvatures influence cell migration; cells avoid convex hills and settle in concave valleys. However, it is not known whether dynamic changes in curvature can guide cell migration. This study extends a previous in-silico model to explore the effects over time of changing the substrate curvature on cell migration guidance. By simulating a dynamic surface curvature using traveling wave patterns, we investigate the influence of wave height and speed, and find that long-distance cell migration guidance can be achieved on specific wave patterns. We propose a mechanistic explanation of what we call dynamic curvotaxis and highlight those cellular features that may be involved. Our results open a new area of study for understanding cell mobility in dynamic environments, from single-cell in vitro experiments to multi-cellular in vivo mechanisms.
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Affiliation(s)
- Ian Manifacier
- Aix Marseille Univ, CNRS, ISM, Marseille, France
- APHM, Institute for Locomotion, Department of Orthopaedics and Traumatology, St Marguerite Hospital, Marseille, France
| | - Gildas Carlin
- Aix Marseille Univ, CNRS, ISM, Marseille, France
- APHM, Institute for Locomotion, Department of Orthopaedics and Traumatology, St Marguerite Hospital, Marseille, France
| | - Dongshu Liu
- Aix Marseille Univ, CNRS, ISM, Marseille, France
- APHM, Institute for Locomotion, Department of Orthopaedics and Traumatology, St Marguerite Hospital, Marseille, France
| | - Maxime Vassaux
- Univ Rennes, CNRS, IPR (Institut de Physique de Rennes) - UMR 6251, 35000, Rennes, France
| | - Laurent Pieuchot
- Université de Haute-Alsace, CNRS, IS2M UMR 7361, Mulhouse, 68100, France
| | - Valeriy Luchnikov
- Université de Haute-Alsace, CNRS, IS2M UMR 7361, Mulhouse, 68100, France
| | - Karine Anselme
- Université de Haute-Alsace, CNRS, IS2M UMR 7361, Mulhouse, 68100, France
| | - Jean-Louis Milan
- Aix Marseille Univ, CNRS, ISM, Marseille, France.
- APHM, Institute for Locomotion, Department of Orthopaedics and Traumatology, St Marguerite Hospital, Marseille, France.
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4
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Boutillon A. Organizing collective cell migration through guidance by followers. C R Biol 2023; 346:117-126. [PMID: 38095130 DOI: 10.5802/crbiol.145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Accepted: 11/07/2023] [Indexed: 12/18/2023]
Abstract
Morphogenesis, wound healing, and some cancer metastases rely on the collective migration of groups of cells. In these processes, guidance and coordination between cells and tissues are critical. While strongly adherent epithelial cells have to move collectively, loosely organized mesenchymal cells can migrate as individual cells. Nevertheless, many of them migrate collectively. This article summarizes how migratory reactions to cell-cell contacts, also called "contact regulation of locomotion" behaviors, organize mesenchymal collective cell migration. It focuses on one recently discovered mechanism called "guidance by followers", through which a cell is oriented by its immediate followers. In the gastrulating zebrafish embryo, during embryonic axis elongation, this phenomenon is responsible for the collective migration of the leading tissue, the polster, and its guidance by the following posterior axial mesoderm. Such guidance of migrating cells by followers ensures long-range coordination of movements and developmental robustness. Along with other "contact regulation of locomotion" behaviors, this mechanism contributes to organizing collective migration of loose populations of cells.
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5
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Tanjore Ramanathan J, Zárybnický T, Filppu P, Monzo HJ, Monni O, Tervonen TA, Klefström J, Kerosuo L, Kuure S, Laakkonen P. Immunoglobulin superfamily member 3 is required for the vagal neural crest cell migration and enteric neuronal network organization. Sci Rep 2023; 13:17162. [PMID: 37821496 PMCID: PMC10567708 DOI: 10.1038/s41598-023-44093-8] [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: 03/07/2023] [Accepted: 10/03/2023] [Indexed: 10/13/2023] Open
Abstract
The immunoglobulin (Ig) superfamily members are involved in cell adhesion and migration, complex multistep processes that play critical roles in embryogenesis, wound healing, tissue formation, and many other processes, but their specific functions during embryonic development remain unclear. Here, we have studied the function of the immunoglobulin superfamily member 3 (IGSF3) by generating an Igsf3 knockout (KO) mouse model with CRISPR/Cas9-mediated genome engineering. By combining RNA and protein detection methodology, we show that during development, IGSF3 localizes to the neural crest and a subset of its derivatives, suggesting a role in normal embryonic and early postnatal development. Indeed, inactivation of Igsf3 impairs the ability of the vagal neural crest cells to migrate and normally innervate the intestine. The small intestine of Igsf3 KO mice shows reduced thickness of the muscularis externa and diminished number of enteric neurons. Also, misalignment of neurons and smooth muscle cells in the developing intestinal villi is detected. Taken together, our results suggest that IGSF3 functions contribute to the formation of the enteric nervous system. Given the essential role of the enteric nervous system in maintaining normal gastrointestinal function, our study adds to the pool of information required for further understanding the mechanisms of gut innervation and etiology behind bowel motility disorders.
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Affiliation(s)
| | - Tomáš Zárybnický
- Stem Cells and Metabolism Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Pauliina Filppu
- Translational Cancer Medicine Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Hector J Monzo
- Translational Cancer Medicine Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Outi Monni
- Applied Tumor Genomics Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Topi A Tervonen
- Translational Cancer Medicine Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland
- Finnish genome editing center (FinGEEC), Helsinki Institute of Life Science (HiLIFE), University of Helsinki, Helsinki, Finland
| | - Juha Klefström
- Translational Cancer Medicine Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland
- Finnish Cancer Institute & FICAN South, Helsinki University Hospital (HUS), Helsinki, Finland
| | - Laura Kerosuo
- Neural Crest Development and Disease Unit, Department of Health and Human Services, National Institute of Dental and Craniofacial Research, National Institutes of Health, Bethesda, MD, 20892, USA.
| | - Satu Kuure
- Stem Cells and Metabolism Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland.
- GM-unit, Helsinki Institute of Life Science (HiLIFE), University of Helsinki, Helsinki, Finland.
| | - Pirjo Laakkonen
- Translational Cancer Medicine Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland.
- iCAN Flagship Program, University of Helsinki, Helsinki, Finland.
- Laboratory Animal Centre, Helsinki Institute of Life Science (HiLIFE), University of Helsinki, Helsinki, Finland.
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6
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Smeriglio P, Zalc A. Cranial Neural Crest Cells Contribution to Craniofacial Bone Development and Regeneration. Curr Osteoporos Rep 2023; 21:624-631. [PMID: 37421571 DOI: 10.1007/s11914-023-00804-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 06/14/2023] [Indexed: 07/10/2023]
Abstract
PURPOSE OF REVIEW This review aims to summarize (i) the latest evidence on cranial neural crest cells (CNCC) contribution to craniofacial development and ossification; (ii) the recent discoveries on the mechanisms responsible for their plasticity; and (iii) the newest procedures to ameliorate maxillofacial tissue repair. RECENT FINDINGS CNCC display a remarkable differentiation potential that exceeds the capacity of their germ layer of origin. The mechanisms by which they expand their plasticity was recently described. Their ability to participate to craniofacial bone development and regeneration open new perspectives for treatments of traumatic craniofacial injuries or congenital syndromes. These conditions can be life-threatening, require invasive maxillofacial surgery and can leave deep sequels on our health or quality of life. With accumulating evidence showing how CNCC-derived stem cells potential can ameliorate craniofacial reconstruction and tissue repair, we believe a deeper understanding of the mechanisms regulating CNCC plasticity is essential to ameliorate endogenous regeneration and improve tissue repair therapies.
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Affiliation(s)
- Piera Smeriglio
- Centre de Recherche en Myologie, Institut de Myologie, INSERM, Sorbonne Université, 75013, Paris, France.
| | - Antoine Zalc
- Institut Cochin, CNRS, INSERM, Université Paris Cité, 75014, Paris, France.
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7
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Schock EN, York JR, Li AP, Tu AY, LaBonne C. SoxB1 transcription factors are essential for initiating and maintaining the neural plate border gene expression. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.09.28.560033. [PMID: 37808794 PMCID: PMC10557662 DOI: 10.1101/2023.09.28.560033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/10/2023]
Abstract
SoxB1 transcription factors (Sox2/3) are well known for their role in early neural fate specification in the embryo, but little is known about functional roles for SoxB1 factors in non-neural ectodermal cell types, such as the neural plate border (NPB). Using Xenopus laevis , we set out to determine if SoxB1 transcription factors have a regulatory function in NPB formation. Herein, we show that SoxB1 factors are necessary for NPB formation, and that prolonged SoxB1 factor activity blocks the transition from a NPB to a neural crest state. Using ChIP-seq we demonstrate that Sox3 is enriched upstream of NPB genes in early NPB cells and, surprisingly, in blastula stem cells. Depletion of SoxB1 factors in blastula stem cells results in downregulation of NPB genes. Finally, we identify Pou5f3 factors as a potential SoxB1 partners in regulating the formation of the NPB and show their combined activity is needed to maintain NPB gene expression. Together, these data identify a novel role for SoxB1 factors in the establishment and maintenance of the NPB, in part through partnership with Pou5f3 factors.
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8
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Kyomen S, Murillo-Rincón AP, Kaucká M. Evolutionary mechanisms modulating the mammalian skull development. Philos Trans R Soc Lond B Biol Sci 2023; 378:20220080. [PMID: 37183900 PMCID: PMC10184257 DOI: 10.1098/rstb.2022.0080] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/16/2023] Open
Abstract
Mammals possess impressive craniofacial variation that mirrors their adaptation to diverse ecological niches, feeding behaviour, physiology and overall lifestyle. The spectrum of craniofacial geometries is established mainly during embryonic development. The formation of the head represents a sequence of events regulated on genomic, molecular, cellular and tissue level, with each step taking place under tight spatio-temporal control. Even minor variations in timing, position or concentration of the molecular drivers and the resulting events can affect the final shape, size and position of the skeletal elements and the geometry of the head. Our knowledge of craniofacial development increased substantially in the last decades, mainly due to research using conventional vertebrate model organisms. However, how developmental differences in head formation arise specifically within mammals remains largely unexplored. This review highlights three evolutionary mechanisms acknowledged to modify ontogenesis: heterochrony, heterotopy and heterometry. We present recent research that links changes in developmental timing, spatial organization or gene expression levels to the acquisition of species-specific skull morphologies. We highlight how these evolutionary modifications occur on the level of the genes, molecules and cellular processes, and alter conserved developmental programmes to generate a broad spectrum of skull shapes characteristic of the class Mammalia. This article is part of the theme issue 'The mammalian skull: development, structure and function'.
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Affiliation(s)
- Stella Kyomen
- Max Planck Institute for Evolutionary Biology, August-Thienemann-Strasse 2, Plön 24306, Germany
| | - Andrea P Murillo-Rincón
- Max Planck Institute for Evolutionary Biology, August-Thienemann-Strasse 2, Plön 24306, Germany
| | - Markéta Kaucká
- Max Planck Institute for Evolutionary Biology, August-Thienemann-Strasse 2, Plön 24306, Germany
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9
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Berns HM, Watkins-Chow DE, Lu S, Louphrasitthiphol P, Zhang T, Brown KM, Moura-Alves P, Goding CR, Pavan WJ. Loss of MC1R signaling implicates TBX3 in pheomelanogenesis and melanoma predisposition. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.03.10.532018. [PMID: 37090624 PMCID: PMC10120706 DOI: 10.1101/2023.03.10.532018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Abstract
The human Red Hair Color (RHC) trait is caused by increased pheomelanin (red-yellow) and reduced eumelanin (black-brown) pigment in skin and hair due to diminished melanocortin 1 receptor (MC1R) function. In addition, individuals harboring the RHC trait are predisposed to melanoma development. While MC1R variants have been established as causative of RHC and are a well-defined risk factor for melanoma, it remains unclear mechanistically why decreased MC1R signaling alters pigmentation and increases melanoma susceptibility. Here, we use single-cell RNA-sequencing (scRNA-seq) of melanocytes isolated from RHC mouse models to reveal a Pheomelanin Gene Signature (PGS) comprising genes implicated in melanogenesis and oncogenic transformation. We show that TBX3, a well-known anti-senescence transcription factor implicated in melanoma progression, is part of the PGS and binds both E-box and T-box elements to regulate genes associated with melanogenesis and senescence bypass. Our results provide key insights into mechanisms by which MC1R signaling regulates pigmentation and how individuals with the RHC phenotype are predisposed to melanoma.
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Affiliation(s)
- H. Matthew Berns
- Genetic Disease Research Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, 20892, USA
- Ludwig Institute for Cancer Research, Nuffield Department of Clinical Medicine, University of Oxford, Headington, Oxford, OX3 7DQ, UK
| | - Dawn E. Watkins-Chow
- Genetic Disease Research Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Sizhu Lu
- Ludwig Institute for Cancer Research, Nuffield Department of Clinical Medicine, University of Oxford, Headington, Oxford, OX3 7DQ, UK
| | - Pakavarin Louphrasitthiphol
- Ludwig Institute for Cancer Research, Nuffield Department of Clinical Medicine, University of Oxford, Headington, Oxford, OX3 7DQ, UK
- Department of Gastrointestinal and Hepato-Biliary-Pancreatic Surgery, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Tongwu Zhang
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD 20892, 13 USA
| | - Kevin M. Brown
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD 20892, 13 USA
| | - Pedro Moura-Alves
- Ludwig Institute for Cancer Research, Nuffield Department of Clinical Medicine, University of Oxford, Headington, Oxford, OX3 7DQ, UK
- i3S-Instituto de Investigação e Inovação em Saúde, Universidade do Porto, 4200-135 Porto, PT
- IBMC-Instituto de Biologia Molecular e Celular, Universidade do Porto, 4200-135 Porto, PT
| | - Colin R. Goding
- Ludwig Institute for Cancer Research, Nuffield Department of Clinical Medicine, University of Oxford, Headington, Oxford, OX3 7DQ, UK
| | - William J. Pavan
- Genetic Disease Research Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, 20892, USA
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10
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DeLorenzo L, DeBrock V, Carmona Baez A, Ciccotto PJ, Peterson EN, Stull C, Roberts NB, Roberts RB, Powder KE. Morphometric and Genetic Description of Trophic Adaptations in Cichlid Fishes. BIOLOGY 2022; 11:biology11081165. [PMID: 36009792 PMCID: PMC9405370 DOI: 10.3390/biology11081165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Revised: 07/28/2022] [Accepted: 07/30/2022] [Indexed: 11/16/2022]
Abstract
Since Darwin, biologists have sought to understand the evolution and origins of phenotypic adaptations. The skull is particularly diverse due to intense natural selection on feeding biomechanics. We investigated the genetic and molecular origins of trophic adaptation using Lake Malawi cichlids, which have undergone an exemplary evolutionary radiation. We analyzed morphological differences in the lateral and ventral head shape among an insectivore that eats by suction feeding, an obligate biting herbivore, and their F2 hybrids. We identified variation in a series of morphological traits—including mandible width, mandible length, and buccal length—that directly affect feeding kinematics and function. Using quantitative trait loci (QTL) mapping, we found that many genes of small effects influence these craniofacial adaptations. Intervals for some traits were enriched in genes related to potassium transport and sensory systems, the latter suggesting co-evolution of feeding structures and sensory adaptations for foraging. Despite these indications of co-evolution of structures, morphological traits did not show covariation. Furthermore, phenotypes largely mapped to distinct genetic intervals, suggesting that a common genetic basis does not generate coordinated changes in shape. Together, these suggest that craniofacial traits are mostly inherited as separate modules, which confers a high potential for the evolution of morphological diversity. Though these traits are not restricted by genetic pleiotropy, functional demands of feeding and sensory structures likely introduce constraints on variation. In all, we provide insights into the quantitative genetic basis of trophic adaptation, identify mechanisms that influence the direction of morphological evolution, and provide molecular inroads to craniofacial variation.
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Affiliation(s)
- Leah DeLorenzo
- Department of Biological Sciences, Clemson University, Clemson, SC 29634, USA
| | - Victoria DeBrock
- Department of Biological Sciences, Clemson University, Clemson, SC 29634, USA
| | - Aldo Carmona Baez
- Department of Biological Sciences and Genetics and Genomics Academy, North Carolina State University, Raleigh, NC 27695, USA
| | - Patrick J Ciccotto
- Department of Biological Sciences and Genetics and Genomics Academy, North Carolina State University, Raleigh, NC 27695, USA
- Department of Biology, Warren Wilson College, Swannanoa, NC 28778, USA
| | - Erin N Peterson
- Department of Biological Sciences and Genetics and Genomics Academy, North Carolina State University, Raleigh, NC 27695, USA
| | - Clare Stull
- Department of Biological Sciences and Genetics and Genomics Academy, North Carolina State University, Raleigh, NC 27695, USA
| | - Natalie B Roberts
- Department of Biological Sciences and Genetics and Genomics Academy, North Carolina State University, Raleigh, NC 27695, USA
| | - Reade B Roberts
- Department of Biological Sciences and Genetics and Genomics Academy, North Carolina State University, Raleigh, NC 27695, USA
| | - Kara E Powder
- Department of Biological Sciences, Clemson University, Clemson, SC 29634, USA
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11
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Rekler D, Kalcheim C. Completion of neural crest cell production and emigration is regulated by retinoic-acid-dependent inhibition of BMP signaling. eLife 2022; 11:72723. [PMID: 35394423 PMCID: PMC8993216 DOI: 10.7554/elife.72723] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Accepted: 03/02/2022] [Indexed: 12/21/2022] Open
Abstract
Production and emigration of neural crest cells is a transient process followed by the emergence of the definitive roof plate. The mechanisms regulating the end of neural crest ontogeny are poorly understood. Whereas early crest development is stimulated by mesoderm-derived retinoic acid, we report that the end of the neural crest period is regulated by retinoic acid synthesized in the dorsal neural tube. Inhibition of retinoic acid signaling in the neural tube prevents the normal upregulation of BMP inhibitors in the nascent roof plate and prolongs the period of BMP responsiveness which otherwise ceases close to roof plate establishment. Consequently, neural crest production and emigration are extended well into the roof plate stage. In turn, extending the activity of neural crest-specific genes inhibits the onset of retinoic acid synthesis in roof plate suggesting a mutual repressive interaction between neural crest and roof plate traits. Although several roof plate-specific genes are normally expressed in the absence of retinoic acid signaling, roof plate and crest markers are co-expressed in single cells and this domain also contains dorsal interneurons. Hence, the cellular and molecular architecture of the roof plate is compromised. Collectively, our results demonstrate that neural tube-derived retinoic acid, via inhibition of BMP signaling, is an essential factor responsible for the end of neural crest generation and the proper segregation of dorsal neural lineages. The division between the central nervous system – formed by the brain and spinal cord – and the peripheral nervous system – which consists of the neurons that sense and relay information to and from the body – takes place early during embryonic development. Initially, the nervous system consists of a tube of cells called the neural tube. From the top region of this tube, some cells change their shape, exit the tube and migrate to different places in the developing body. These cells are called the ‘neural crest’, and they form many different structures, including the peripheral nervous system. Neural crest cells keep leaving the neural tube for a period of time, but after that, the neural tube stops producing them. At this point, the region of the neural tube that had been producing neural crest cells becomes the ‘roof plate’ of the central nervous system, a structure that is essential for the development of specific groups of neurons in the brain and spinal cord. In bird embryos, a protein called bone morphogenetic protein (BMP) is essential for neural crest production because it triggers the migration of these cells away from the neural tube. Before the roof plate is formed, the activity of BMP is blocked by proteins known as BMP inhibitors, which stop more cells from leaving the neural tube. Around the time when neural crest formation stops, another molecule called retinoic acid begins to be synthesized in the top region of the neural tube. Rekler and Kalcheim asked whether retinoic acid is involved in the transition from neural crest to roof plate. To test this hypothesis, Rekler and Kalcheim blocked the activity of retinoic acid in the neural tube of quail embryos at the time when they should stop producing neural crest cells. This resulted in embryos in which the neural tube keeps producing neural crest cells after the roof plate has formed. In these embryos, individual cells in the resulting ‘roof plate’ produced both proteins that are normally only found in neural crest cells, and proteins typically exclusive to the roof plate. This suggests that, in the absence of retinoic acid activity, the segregation of neural crest identity from roof plate identity is compromised. Rekler and Kalcheim also found that, in the embryos where retinoic acid activity had been blocked, the cells in the area where the roof plate should be produced virtually no BMP inhibitors, and exhibited extended BMP activity. This allowed neural crest cells to continue forming and migrating away from the neural tube well after the period when they would stop in a normal embryo. These results indicate that retinoic acid stops the production of neural crest cells by repressing BMP activity in the roof plate of the neural tube. Rekler and Kalcheim’s experiments shed light on the mechanisms that allow the central and peripheral nervous systems to become segregated. This could increase our understanding of the origin of several neurodevelopmental disorders, potentially providing insights into their treatment or prevention. Additionally, the process of neural crest production and exit from the neural tube is highly similar to the process of metastasis in many invasive cancers. Thus, by understanding how the production of neural crest cells is terminated, it may be possible to learn how to prevent malignant cancer cells from spreading through the body.
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Affiliation(s)
- Dina Rekler
- Department of Medical Neurobiology, Institute of Medical Research Israel-Canada (IMRIC) and the Edmond and Lily Safra Center for Brain Sciences (ELSC), Hebrew University of Jerusalem-Hadassah Medical School, Jerusalem, Israel
| | - Chaya Kalcheim
- Department of Medical Neurobiology, Institute of Medical Research Israel-Canada (IMRIC) and the Edmond and Lily Safra Center for Brain Sciences (ELSC), Hebrew University of Jerusalem-Hadassah Medical School, Jerusalem, Israel
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12
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Abstract
The EPH receptor tyrosine kinases and their signaling partners, the EPHRINS, comprise a large class of cell signaling molecules that plays diverse roles in development. As cell membrane-anchored signaling molecules, they regulate cellular organization by modulating the strength of cellular contacts, usually by impacting the actin cytoskeleton or cell adhesion programs. Through these cellular functions, EPH/EPHRIN signaling often regulates tissue shape. Indeed, recent evidence indicates that this signaling family is ancient and associated with the origin of multicellularity. Though extensively studied, our understanding of the signaling mechanisms employed by this large family of signaling proteins remains patchwork, and a truly "canonical" EPH/EPHRIN signal transduction pathway is not known and may not exist. Instead, several foundational evolutionarily conserved mechanisms are overlaid by a myriad of tissue -specific functions, though common themes emerge from these as well. Here, I review recent advances and the related contexts that have provided new understanding of the conserved and varied molecular and cellular mechanisms employed by EPH/EPHRIN signaling during development.
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Affiliation(s)
- Jeffrey O Bush
- Department of Cell and Tissue Biology, University of California San Francisco, San Francisco, CA, United States; Program in Craniofacial Biology, University of California San Francisco, San Francisco, CA, United States; Institute for Human Genetics, University of California San Francisco, San Francisco, CA, United States; Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell Research, University of California San Francisco, San Francisco, CA, United States.
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13
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Nie S. Quantitative Analysis of Directional Neural Crest Cell Migration. Methods Mol Biol 2022; 2438:517-526. [PMID: 35147961 DOI: 10.1007/978-1-0716-2035-9_30] [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] [Indexed: 06/14/2023]
Abstract
The neural crest is a highly migratory cell population that evolved in vertebrates. Born at the lateral borders of the neural plate, neural crest cells migrate long distances along defined paths and contribute to the development of many tissue and structures. Neural crest has become an important model for studying directional cell migration. Frog Xenopus laevis is particularly feasible in these studies. Both in vivo and in vitro analyses are performed to study frog neural crest cell migration. While in vivo analysis can provide direct knowledge of how neural crest cells interact with neighboring tissues during their migration, in vitro analysis can produce high-resolution results on cell morphological changes and cell motility. Here we provide a detailed protocol for performing quantitative analysis of Xenopus laevis neural crest cell migration in vitro.
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Affiliation(s)
- Shuyi Nie
- School of Biological Sciences, Georgia Institute of Technology, Atlanta, GA, USA.
- Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, GA, USA.
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14
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Abstract
Breathing (or respiration) is a complex motor behavior that originates in the brainstem. In minimalistic terms, breathing can be divided into two phases: inspiration (uptake of oxygen, O2) and expiration (release of carbon dioxide, CO2). The neurons that discharge in synchrony with these phases are arranged in three major groups along the brainstem: (i) pontine, (ii) dorsal medullary, and (iii) ventral medullary. These groups are formed by diverse neuron types that coalesce into heterogeneous nuclei or complexes, among which the preBötzinger complex in the ventral medullary group contains cells that generate the respiratory rhythm (Chapter 1). The respiratory rhythm is not rigid, but instead highly adaptable to the physic demands of the organism. In order to generate the appropriate respiratory rhythm, the preBötzinger complex receives direct and indirect chemosensory information from other brainstem respiratory nuclei (Chapter 2) and peripheral organs (Chapter 3). Even though breathing is a hard-wired unconscious behavior, it can be temporarily altered at will by other higher-order brain structures (Chapter 6), and by emotional states (Chapter 7). In this chapter, we focus on the development of brainstem respiratory groups and highlight the cell lineages that contribute to central and peripheral chemoreflexes.
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Affiliation(s)
- Eser Göksu Isik
- Brainstem Group, Institute for Cell Biology and Neurobiology, Charité Universitätsmedizin Berlin, Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Luis R Hernandez-Miranda
- Brainstem Group, Institute for Cell Biology and Neurobiology, Charité Universitätsmedizin Berlin, Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany.
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15
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Grund A, Till K, Giehl K, Borchers A. Ptk7 Is Dynamically Localized at Neural Crest Cell-Cell Contact Sites and Functions in Contact Inhibition of Locomotion. Int J Mol Sci 2021; 22:ijms22179324. [PMID: 34502237 PMCID: PMC8431534 DOI: 10.3390/ijms22179324] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Revised: 08/24/2021] [Accepted: 08/25/2021] [Indexed: 02/08/2023] Open
Abstract
Neural crest (NC) cells are highly migratory cells that contribute to various vertebrate tissues, and whose migratory behaviors resemble cancer cell migration and invasion. Information exchange via dynamic NC cell-cell contact is one mechanism by which the directionality of migrating NC cells is controlled. One transmembrane protein that is most likely involved in this process is protein tyrosine kinase 7 (PTK7), an evolutionary conserved Wnt co-receptor that is expressed in cranial NC cells and several tumor cells. In Xenopus, Ptk7 is required for NC migration. In this study, we show that the Ptk7 protein is dynamically localized at cell-cell contact zones of migrating Xenopus NC cells and required for contact inhibition of locomotion (CIL). Using deletion constructs of Ptk7, we determined that the extracellular immunoglobulin domains of Ptk7 are important for its transient accumulation and that they mediate homophilic binding. Conversely, we found that ectopic expression of Ptk7 in non-NC cells was able to prevent NC cell invasion. However, deletion of the extracellular domains of Ptk7 abolished this effect. Thus, Ptk7 is sufficient at protecting non-NC tissue from NC cell invasion, suggesting a common role of PTK7 in contact inhibition, cell invasion, and tissue integrity.
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Affiliation(s)
- Anita Grund
- Faculty of Biology, Molecular Embryology, Philipps-University Marburg, D-35032 Marburg, Germany; (A.G.); (K.T.)
| | - Katharina Till
- Faculty of Biology, Molecular Embryology, Philipps-University Marburg, D-35032 Marburg, Germany; (A.G.); (K.T.)
| | - Klaudia Giehl
- Faculty of Medicine, Signal Transduction of Cellular Motility, Internal Medicine V, Justus-Liebig University Giessen, D-35392 Giessen, Germany;
| | - Annette Borchers
- Faculty of Biology, Molecular Embryology, Philipps-University Marburg, D-35032 Marburg, Germany; (A.G.); (K.T.)
- Correspondence: ; Tel.: +49-6421-2826587
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16
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Lettieri A, Oleari R, Paganoni AJJ, Gervasini C, Massa V, Fantin A, Cariboni A. Semaphorin Regulation by the Chromatin Remodeler CHD7: An Emerging Genetic Interaction Shaping Neural Cells and Neural Crest in Development and Cancer. Front Cell Dev Biol 2021; 9:638674. [PMID: 33869187 PMCID: PMC8047133 DOI: 10.3389/fcell.2021.638674] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Accepted: 02/24/2021] [Indexed: 12/16/2022] Open
Abstract
CHD7 is a chromatin remodeler protein that controls gene expression via the formation of multi-protein complexes with specific transcription factors. During development, CHD7 controls several differentiation programs, mainly by acting on neural progenitors and neural crest (NC) cells. Thus, its roles range from the central nervous system to the peripheral nervous system and the organs colonized by NC cells, including the heart. Accordingly, mutated CHD7 is linked to CHARGE syndrome, which is characterized by several neuronal dysfunctions and by malformations of NC-derived/populated organs. Altered CHD7 has also been associated with different neoplastic transformations. Interestingly, recent evidence revealed that semaphorins, a class of molecules involved in developmental and pathological processes similar to those controlled by CHD7, are regulated by CHD7 in a context-specific manner. In this article, we will review the recent insights that support the existence of genetic interactions between these pathways, both during developmental processes and cancer progression.
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Affiliation(s)
- Antonella Lettieri
- CRC Aldo Ravelli for Neurotechnology and Experimental Brain Therapeutics, Università degli Studi di Milano, Milan, Italy.,Department of Health Sciences, Università degli Studi di Milano, Milan, Italy
| | - Roberto Oleari
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Milan, Italy
| | - Alyssa J J Paganoni
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Milan, Italy
| | - Cristina Gervasini
- CRC Aldo Ravelli for Neurotechnology and Experimental Brain Therapeutics, Università degli Studi di Milano, Milan, Italy.,Department of Health Sciences, Università degli Studi di Milano, Milan, Italy
| | - Valentina Massa
- CRC Aldo Ravelli for Neurotechnology and Experimental Brain Therapeutics, Università degli Studi di Milano, Milan, Italy.,Department of Health Sciences, Università degli Studi di Milano, Milan, Italy
| | - Alessandro Fantin
- Department of Biosciences, Università degli Studi di Milano, Milan, Italy
| | - Anna Cariboni
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Milan, Italy
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17
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Zalc A, Sinha R, Gulati GS, Wesche DJ, Daszczuk P, Swigut T, Weissman IL, Wysocka J. Reactivation of the pluripotency program precedes formation of the cranial neural crest. Science 2021; 371:371/6529/eabb4776. [PMID: 33542111 DOI: 10.1126/science.abb4776] [Citation(s) in RCA: 71] [Impact Index Per Article: 23.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Accepted: 11/20/2020] [Indexed: 12/16/2022]
Abstract
During development, cells progress from a pluripotent state to a more restricted fate within a particular germ layer. However, cranial neural crest cells (CNCCs), a transient cell population that generates most of the craniofacial skeleton, have much broader differentiation potential than their ectodermal lineage of origin. Here, we identify a neuroepithelial precursor population characterized by expression of canonical pluripotency transcription factors that gives rise to CNCCs and is essential for craniofacial development. Pluripotency factor Oct4 is transiently reactivated in CNCCs and is required for the subsequent formation of ectomesenchyme. Furthermore, open chromatin landscapes of Oct4+ CNCC precursors resemble those of epiblast stem cells, with additional features suggestive of priming for mesenchymal programs. We propose that CNCCs expand their developmental potential through a transient reacquisition of molecular signatures of pluripotency.
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Affiliation(s)
- Antoine Zalc
- Department of Chemical and Systems Biology, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Rahul Sinha
- Institute for Stem Cell Biology and Regenerative Medicine, Stanford Medicine, Stanford, CA 94305, USA
| | - Gunsagar S Gulati
- Institute for Stem Cell Biology and Regenerative Medicine, Stanford Medicine, Stanford, CA 94305, USA
| | - Daniel J Wesche
- Institute for Stem Cell Biology and Regenerative Medicine, Stanford Medicine, Stanford, CA 94305, USA
| | - Patrycja Daszczuk
- Department of Chemical and Systems Biology, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Tomek Swigut
- Department of Chemical and Systems Biology, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Irving L Weissman
- Institute for Stem Cell Biology and Regenerative Medicine, Stanford Medicine, Stanford, CA 94305, USA
| | - Joanna Wysocka
- Department of Chemical and Systems Biology, Stanford University School of Medicine, Stanford, CA 94305, USA. .,Institute for Stem Cell Biology and Regenerative Medicine, Stanford Medicine, Stanford, CA 94305, USA.,Department of Developmental Biology, Stanford University School of Medicine, Stanford, CA 94305, USA.,Howard Hughes Medical Institute, Stanford University School of Medicine, Stanford, CA 94305, USA
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18
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Fan X, Masamsetti VP, Sun JQ, Engholm-Keller K, Osteil P, Studdert J, Graham ME, Fossat N, Tam PP. TWIST1 and chromatin regulatory proteins interact to guide neural crest cell differentiation. eLife 2021; 10:62873. [PMID: 33554859 PMCID: PMC7968925 DOI: 10.7554/elife.62873] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Accepted: 02/05/2021] [Indexed: 12/11/2022] Open
Abstract
Protein interaction is critical molecular regulatory activity underlining cellular functions and precise cell fate choices. Using TWIST1 BioID-proximity-labeling and network propagation analyses, we discovered and characterized a TWIST-chromatin regulatory module (TWIST1-CRM) in the neural crest cells (NCC). Combinatorial perturbation of core members of TWIST1-CRM: TWIST1, CHD7, CHD8, and WHSC1 in cell models and mouse embryos revealed that loss of the function of the regulatory module resulted in abnormal differentiation of NCCs and compromised craniofacial tissue patterning. Following NCC delamination, low level of TWIST1-CRM activity is instrumental to stabilize the early NCC signatures and migratory potential by repressing the neural stem cell programs. High level of TWIST1 module activity at later phases commits the cells to the ectomesenchyme. Our study further revealed the functional interdependency of TWIST1 and potential neurocristopathy factors in NCC development. Shaping the head and face during development relies on a complex ballet of molecular signals that orchestrates the movement and specialization of various groups of cells. In animals with a backbone for example, neural crest cells (NCCs for short) can march long distances from the developing spine to become some of the tissues that form the skull and cartilage but also the pigment cells and nervous system. NCCs mature into specific cell types thanks to a complex array of factors which trigger a precise sequence of binary fate decisions at the right time and place. Amongst these factors, the protein TWIST1 can set up a cascade of genetic events that control how NCCs will ultimately form tissues in the head. To do so, the TWIST1 protein interacts with many other molecular actors, many of which are still unknown. To find some of these partners, Fan et al. studied TWIST1 in the NCCs of mice and cells grown in the lab. The experiments showed that TWIST1 interacted with CHD7, CHD8 and WHSC1, three proteins that help to switch genes on and off, and which contribute to NCCs moving across the head during development. Further work by Fan et al. then revealed that together, these molecular actors are critical for NCCs to form cells that will form facial bones and cartilage, as opposed to becoming neurons. This result helps to show that there is a trade-off between NCCs forming the face or being part of the nervous system. One in three babies born with a birth defect shows anomalies of the head and face: understanding the exact mechanisms by which NCCs contribute to these structures may help to better predict risks for parents, or to develop new approaches for treatment.
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Affiliation(s)
- Xiaochen Fan
- Embryology Unit, Children's Medical Research Institute, The University of Sydney, Sydney, Australia.,The University of Sydney, School of Medical Sciences, Faculty of Medicine and Health, Sydney, Australia
| | - V Pragathi Masamsetti
- Embryology Unit, Children's Medical Research Institute, The University of Sydney, Sydney, Australia
| | - Jane Qj Sun
- Embryology Unit, Children's Medical Research Institute, The University of Sydney, Sydney, Australia
| | - Kasper Engholm-Keller
- Synapse Proteomics Group, Children's Medical Research Institute, The University of Sydney, Sydney, Australia
| | - Pierre Osteil
- Embryology Unit, Children's Medical Research Institute, The University of Sydney, Sydney, Australia
| | - Joshua Studdert
- Embryology Unit, Children's Medical Research Institute, The University of Sydney, Sydney, Australia
| | - Mark E Graham
- Synapse Proteomics Group, Children's Medical Research Institute, The University of Sydney, Sydney, Australia
| | - Nicolas Fossat
- Embryology Unit, Children's Medical Research Institute, The University of Sydney, Sydney, Australia.,The University of Sydney, School of Medical Sciences, Faculty of Medicine and Health, Sydney, Australia
| | - Patrick Pl Tam
- Embryology Unit, Children's Medical Research Institute, The University of Sydney, Sydney, Australia.,The University of Sydney, School of Medical Sciences, Faculty of Medicine and Health, Sydney, Australia
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19
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Gonzalez-Gobartt E, Allio G, Bénazéraf B, Martí E. In Vivo Analysis of the Mesenchymal-to-Epithelial Transition During Chick Secondary Neurulation. Methods Mol Biol 2021; 2179:183-197. [PMID: 32939722 DOI: 10.1007/978-1-0716-0779-4_16] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The neural tube in amniotic embryos forms as a result of two consecutive events along the anteroposterior axis, referred to as primary and secondary neurulation (PN and SN). While PN involves the invagination of a sheet of epithelial cells, SN shapes the caudal neural tube through the mesenchymal-to-epithelial transition (MET) of neuromesodermal progenitors, followed by cavitation of the medullary cord. The technical difficulties in studying SN mainly involve the challenge of labeling and manipulating SN cells in vivo. Here we describe a new method to follow MET during SN in the chick embryo, combining early in ovo chick electroporation with in vivo time-lapse imaging. This procedure allows the cells undergoing SN to be manipulated in order to investigate the MET process, permitting their cell dynamics to be followed in vivo.
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Affiliation(s)
- Elena Gonzalez-Gobartt
- Instituto de Biología Molecular de Barcelona, CSIC, Parc Científic de Barcelona, Barcelona, Spain
| | - Guillaume Allio
- Centre de Biologie du Développement (CBD), Centre de Biologie Intégrative (CBI), Université de Toulouse, CNRS, UPS, Toulouse, France
| | - Bertrand Bénazéraf
- Centre de Biologie du Développement (CBD), Centre de Biologie Intégrative (CBI), Université de Toulouse, CNRS, UPS, Toulouse, France
| | - Elisa Martí
- Instituto de Biología Molecular de Barcelona, CSIC, Parc Científic de Barcelona, Barcelona, Spain.
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20
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Rai A, Kumari M, Kumar T, Rai S, Gupta H, Singh R. Analytical study of the psychosocial impact of malocclusion and maxillofacial deformity in patients undergoing orthodontic treatment. J Med Life 2021; 14:21-31. [PMID: 33767781 PMCID: PMC7982255 DOI: 10.25122/jml-2020-0022] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Accepted: 04/02/2020] [Indexed: 11/18/2022] Open
Abstract
Patients whose with facial appearance involves dental anomalies and malocclusion face an increased prevalence of various psychosocial problems such as a high level of social anxiety, social avoidance, and low quality of life. This study investigates the patients with craniofacial anomalies and their psychological adjustment concerning the facial and dental appearance. It also evaluates the expectations of this patient group from the orthodontic treatment. Two steps were done in this study. In the first step, translation and validation of the Derriford Appearance Scale (DAS59), The Psychosocial Impact of Dental Aesthetics Questionnaire (PIDAQ), and Patient Expectation from the Orthodontic Treatment (PEOTQ) questionnaires into Maithili were done, and then the main study was conducted using these valid questionnaires. This was a cross-sectional study conducted on the patients with congenital craniofacial anomalies visiting the orthodontics department of Patna Dental College and Hospital, Patna (Bihar). All the patients received the Maithili DAS, Maithili PIDAQ and Patients' Expectation from the orthodontic treatment questionnaires. The Maithili version of DAS59, PIDAQ and PEOTQ were developed with outstanding reliability and validity. A significant difference between PIDAQ (p<0.001) and DAS59 scores (p<0.001) was found. In females, the total PIDAQ score was significantly higher as compared to males, but there was no association of DAS scores with gender. Place of residence showed no association with PIDAQ and DAS59 scores in patients. Patients and controls had significant differences between various items, and a comparison was made in terms of expectation from the orthodontic treatment. Altered facial and dental appearance in patients with craniofacial anomalies showed a significant psychological impact.
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Affiliation(s)
- Anurag Rai
- Department of Orthodontics, Patna Dental College and Hospital, Bankipore, Patna, India
| | - Minti Kumari
- Department of Public Health Dentistry, Patna Dental College and Hospital, Patna, Bihar, India
| | - Tanoj Kumar
- Department of Oral Pathology and Microbiology, Patna Dental College and Hospital, Patna, Bihar, India
| | - Shweta Rai
- Department of Oral and Maxillofacial Surgery, Buddha Institute of Dental Sciences and Hospital, Kankarbagh, Patna, Bihar, India
| | - Himali Gupta
- Department of Orthodontics, KD Dental College and Hospital, Mathura, Uttar Pradesh, India
| | - Renu Singh
- Department of Orthodontics, KD Dental College and Hospital, Mathura, Uttar Pradesh, India
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21
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Wakamatsu Y, Uchikawa M. The many faces of Sox2 function in neural crest development. Dev Growth Differ 2020; 63:93-99. [PMID: 33326593 DOI: 10.1111/dgd.12705] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 10/26/2020] [Accepted: 11/13/2020] [Indexed: 12/14/2022]
Abstract
Neural crest (NC) cells give rise to a wide variety of cell types and tissues, such as neurons and glial cells in the peripheral nervous system. Sox2, which encodes an HMG-box transcription factor, is known to mediate pluripotency of primordial germ cells and embryonic stem (ES)/induced pluripotent stem (iPS) cells, and to regulate central nervous system development. Previous studies have revealed that Sox2 is also an important regulator of NC development. This review summarizes the well-established inhibitory roles of Sox2 in NC formation and subsequent neuronal differentiation of NC-derived cells. This review also covers recent studies suggesting additional roles for Sox2 in early NC development, neurogenesis, and glial differentiation of NC-derived cells.
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Affiliation(s)
- Yoshio Wakamatsu
- Center for Translational and Advanced Animal Research on Human Diseases, Graduate School of Medicine, Tohoku University, Sendai, Japan
| | - Masanori Uchikawa
- Graduate School of Frontier Biosciences, Osaka University, Suita, Japan
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22
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Mondal C, Di Martino JS, Bravo-Cordero JJ. Actin dynamics during tumor cell dissemination. INTERNATIONAL REVIEW OF CELL AND MOLECULAR BIOLOGY 2020; 360:65-98. [PMID: 33962751 PMCID: PMC8246644 DOI: 10.1016/bs.ircmb.2020.09.004] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The actin cytoskeleton is a dynamic network that regulates cellular behavior from development to disease. By rearranging the actin cytoskeleton, cells are capable of migrating and invading during developmental processes; however, many of these cellular properties are hijacked by cancer cells to escape primary tumors and disseminate to distant organs in the body. In this review article, we highlight recent work describing how cancer cells regulate the actin cytoskeleton to achieve efficient invasion and metastatic colonization. We also review new imaging technologies that are capable of revealing the complex architecture and regulation of the actin cytoskeleton during motility and invasion of tumor cells.
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Affiliation(s)
- Chandrani Mondal
- Department of Medicine, Division of Hematology and Oncology, The Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Julie S Di Martino
- Department of Medicine, Division of Hematology and Oncology, The Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Jose Javier Bravo-Cordero
- Department of Medicine, Division of Hematology and Oncology, The Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, United States.
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23
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Foltz L, Palacios-Moreno J, Mayfield M, Kinch S, Dillon J, Syrenne J, Levy T, Grimes M. PAG1 directs SRC-family kinase intracellular localization to mediate receptor tyrosine kinase-induced differentiation. Mol Biol Cell 2020; 31:2269-2282. [PMID: 32726167 PMCID: PMC7550700 DOI: 10.1091/mbc.e20-02-0135] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Revised: 07/15/2020] [Accepted: 07/21/2020] [Indexed: 12/30/2022] Open
Abstract
All receptor tyrosine kinases (RTKs) activate similar downstream signaling pathways through a common set of effectors, yet it is not fully understood how different receptors elicit distinct cellular responses to cause cell proliferation, differentiation, or other cell fates. We tested the hypothesis that regulation of SRC family kinase (SFK) signaling by the scaffold protein, PAG1, influences cell fate decisions following RTK activation. We generated a neuroblastoma cell line expressing a PAG1 fragment that lacks the membrane-spanning domain (PAG1TM-) and localized to the cytoplasm. PAG1TM- cells exhibited higher amounts of active SFKs and increased growth rate. PAG1TM- cells were unresponsive to TRKA and RET signaling, two RTKs that induce neuronal differentiation, but retained responses to EGFR and KIT. Under differentiation conditions, PAG1TM- cells continued to proliferate and did not extend neurites or increase β-III tubulin expression. FYN and LYN were sequestered in multivesicular bodies (MVBs), and dramatically more FYN and LYN were in the lumen of MVBs in PAG1TM- cells. In particular, activated FYN was sequestered in PAG1TM- cells, suggesting that disruption of FYN localization led to the observed defects in differentiation. The results demonstrate that PAG1 directs SFK intracellular localization to control activity and to mediate signaling by RTKs that induce neuronal differentiation.
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Affiliation(s)
- Lauren Foltz
- Division of Biological Sciences, Center for Biomolecular Structure and Dynamics, and Center for Structural and Functional Neuroscience, University of Montana, Missoula, MT 59812
| | | | - Makenzie Mayfield
- Division of Biological Sciences, Center for Biomolecular Structure and Dynamics, and Center for Structural and Functional Neuroscience, University of Montana, Missoula, MT 59812
| | - Shelby Kinch
- Division of Biological Sciences, Center for Biomolecular Structure and Dynamics, and Center for Structural and Functional Neuroscience, University of Montana, Missoula, MT 59812
| | - Jordan Dillon
- Division of Biological Sciences, Center for Biomolecular Structure and Dynamics, and Center for Structural and Functional Neuroscience, University of Montana, Missoula, MT 59812
| | - Jed Syrenne
- Division of Biological Sciences, Center for Biomolecular Structure and Dynamics, and Center for Structural and Functional Neuroscience, University of Montana, Missoula, MT 59812
| | - Tyler Levy
- Cell Signaling Technology, Danvers, MA 01923
| | - Mark Grimes
- Division of Biological Sciences, Center for Biomolecular Structure and Dynamics, and Center for Structural and Functional Neuroscience, University of Montana, Missoula, MT 59812
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24
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Labedz-Maslowska A, Bryniarska N, Kubiak A, Kaczmarzyk T, Sekula-Stryjewska M, Noga S, Boruczkowski D, Madeja Z, Zuba-Surma E. Multilineage Differentiation Potential of Human Dental Pulp Stem Cells-Impact of 3D and Hypoxic Environment on Osteogenesis In Vitro. Int J Mol Sci 2020; 21:ijms21176172. [PMID: 32859105 PMCID: PMC7504399 DOI: 10.3390/ijms21176172] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 08/20/2020] [Accepted: 08/25/2020] [Indexed: 02/06/2023] Open
Abstract
Human dental pulp harbours unique stem cell population exhibiting mesenchymal stem/stromal cell (MSC) characteristics. This study aimed to analyse the differentiation potential and other essential functional and morphological features of dental pulp stem cells (DPSCs) in comparison with Wharton’s jelly-derived MSCs from the umbilical cord (UC-MSCs), and to evaluate the osteogenic differentiation of DPSCs in 3D culture with a hypoxic microenvironment resembling the stem cell niche. Human DPSCs as well as UC-MSCs were isolated from primary human tissues and were subjected to a series of experiments. We established a multiantigenic profile of DPSCs with CD45−/CD14−/CD34−/CD29+/CD44+/CD73+/CD90+/CD105+/Stro-1+/HLA-DR− (using flow cytometry) and confirmed their tri-lineage osteogenic, chondrogenic, and adipogenic differentiation potential (using qRT-PCR and histochemical staining) in comparison with the UC-MSCs. The results also demonstrated the potency of DPSCs to differentiate into osteoblasts in vitro. Moreover, we showed that the DPSCs exhibit limited cardiomyogenic and endothelial differentiation potential. Decreased proliferation and metabolic activity as well as increased osteogenic differentiation of DPSCs in vitro, attributed to 3D cell encapsulation and low oxygen concentration, were also observed. DPSCs exhibiting elevated osteogenic potential may serve as potential candidates for a cell-based product for advanced therapy, particularly for bone repair. Novel tissue engineering approaches combining DPSCs, 3D biomaterial scaffolds, and other stimulating chemical factors may represent innovative strategies for pro-regenerative therapies.
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Affiliation(s)
- Anna Labedz-Maslowska
- Department of Cell Biology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, 30-387 Krakow, Poland; (A.L.-M.); (N.B.); (A.K.); (S.N.); (Z.M.)
| | - Natalia Bryniarska
- Department of Cell Biology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, 30-387 Krakow, Poland; (A.L.-M.); (N.B.); (A.K.); (S.N.); (Z.M.)
- Department of Experimental Neuroendocrinology, Maj Institute of Pharmacology, Polish Academy of Sciences, 31-343 Krakow, Poland
| | - Andrzej Kubiak
- Department of Cell Biology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, 30-387 Krakow, Poland; (A.L.-M.); (N.B.); (A.K.); (S.N.); (Z.M.)
- Institute of Nuclear Physics, Polish Academy of Sciences, 31-342 Krakow, Poland
| | - Tomasz Kaczmarzyk
- Department of Oral Surgery, Faculty of Medicine, Jagiellonian University Medical College, 31-155 Krakow, Poland;
| | - Malgorzata Sekula-Stryjewska
- Laboratory of Stem Cell Biotechnology, Malopolska Centre of Biotechnology, Jagiellonian University, 30-387 Krakow, Poland;
| | - Sylwia Noga
- Department of Cell Biology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, 30-387 Krakow, Poland; (A.L.-M.); (N.B.); (A.K.); (S.N.); (Z.M.)
- Laboratory of Stem Cell Biotechnology, Malopolska Centre of Biotechnology, Jagiellonian University, 30-387 Krakow, Poland;
| | | | - Zbigniew Madeja
- Department of Cell Biology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, 30-387 Krakow, Poland; (A.L.-M.); (N.B.); (A.K.); (S.N.); (Z.M.)
| | - Ewa Zuba-Surma
- Department of Cell Biology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, 30-387 Krakow, Poland; (A.L.-M.); (N.B.); (A.K.); (S.N.); (Z.M.)
- Correspondence: ; Tel.: +48-12-664-61-80
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25
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Leonard CE, Taneyhill LA. The road best traveled: Neural crest migration upon the extracellular matrix. Semin Cell Dev Biol 2020; 100:177-185. [PMID: 31727473 PMCID: PMC7071992 DOI: 10.1016/j.semcdb.2019.10.013] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Revised: 09/29/2019] [Accepted: 10/30/2019] [Indexed: 12/22/2022]
Abstract
Neural crest cells have the extraordinary task of building much of the vertebrate body plan, including the craniofacial cartilage and skeleton, melanocytes, portions of the heart, and the peripheral nervous system. To execute these developmental programs, stationary premigratory neural crest cells first acquire the capacity to migrate through an extensive process known as the epithelial-to-mesenchymal transition. Once motile, neural crest cells must traverse a complex environment consisting of other cells and the protein-rich extracellular matrix in order to get to their final destinations. Herein, we will highlight some of the main molecular machinery that allow neural crest cells to first exit the neuroepithelium and then later successfully navigate this intricate in vivo milieu. Collectively, these extracellular and intracellular factors mediate the appropriate migration of neural crest cells and allow for the proper development of the vertebrate embryo.
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Affiliation(s)
- Carrie E Leonard
- Department of Animal and Avian Sciences, University of Maryland, College Park, MD 20742 USA.
| | - Lisa A Taneyhill
- Department of Animal and Avian Sciences, University of Maryland, College Park, MD 20742 USA.
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26
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Goldberg S, Venkatesh A, Martinez J, Dombroski C, Abesamis J, Campbell C, Mccalipp M, de Bellard ME. The development of the trunk neural crest in the turtle Trachemys scripta. Dev Dyn 2020; 249:125-140. [PMID: 31587387 PMCID: PMC7293771 DOI: 10.1002/dvdy.119] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Revised: 08/23/2019] [Accepted: 08/24/2019] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND The neural crest is a group of multipotent cells that give rise to a wide variety of cells, especially portion of the peripheral nervous system. Neural crest cells (NCCs) show evolutionary conserved fate restrictions based on their axial level of origin: cranial, vagal, trunk, and sacral. While much is known about these cells in mammals, birds, amphibians, and fish, relatively little is known in other types of amniotes such as snakes, lizards, and turtles. We attempt here to provide a more detailed description of the early phase of trunk neural crest cell (tNCC) development in turtle embryos. RESULTS In this study, we show, for the first time, migrating tNCC in the pharyngula embryo of Trachemys scripta by vital-labeling the NCC with DiI and through immunofluorescence. We found that (a) tNCC form a line along the sides of the trunk NT; (b) The presence of late migrating tNCC on the medial portion of the somite; (c) The presence of lateral mesodermal migrating tNCC in pharyngula embryos; (d) That turtle embryos have large/thick peripheral nerves. CONCLUSIONS The similarities and differences in tNCC migration and early PNS development that we observe across sauropsids (birds, snake, gecko, and turtle) suggests that these species evolved some distinct NCC pathways.
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Affiliation(s)
| | | | | | - Catherine Dombroski
- California State University Northridge, Biology Dept., MC 8303. 18111 Nordhoff Street. Northridge, CA 91330
| | - Jessica Abesamis
- California State University Northridge, Biology Dept., MC 8303. 18111 Nordhoff Street. Northridge, CA 91330
| | - Catherine Campbell
- California State University Northridge, Biology Dept., MC 8303. 18111 Nordhoff Street. Northridge, CA 91330
| | - Mialishia Mccalipp
- California State University Northridge, Biology Dept., MC 8303. 18111 Nordhoff Street. Northridge, CA 91330
| | - Maria Elena de Bellard
- California State University Northridge, Biology Dept., MC 8303. 18111 Nordhoff Street. Northridge, CA 91330
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27
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Sato TS, Handa A, Priya S, Watal P, Becker RM, Sato Y. Neurocristopathies: Enigmatic Appearances of Neural Crest Cell–derived Abnormalities. Radiographics 2019; 39:2085-2102. [DOI: 10.1148/rg.2019190086] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- T. Shawn Sato
- From the Department of Radiology, Stead Family Children’s Hospital, University of Iowa, University of Iowa Hospitals and Clinics, 200 Hawkins Dr, 3889 JPP, Iowa City, IA 52242
| | - Atsuhiko Handa
- From the Department of Radiology, Stead Family Children’s Hospital, University of Iowa, University of Iowa Hospitals and Clinics, 200 Hawkins Dr, 3889 JPP, Iowa City, IA 52242
| | - Sarv Priya
- From the Department of Radiology, Stead Family Children’s Hospital, University of Iowa, University of Iowa Hospitals and Clinics, 200 Hawkins Dr, 3889 JPP, Iowa City, IA 52242
| | - Pankaj Watal
- From the Department of Radiology, Stead Family Children’s Hospital, University of Iowa, University of Iowa Hospitals and Clinics, 200 Hawkins Dr, 3889 JPP, Iowa City, IA 52242
| | - Robert M. Becker
- From the Department of Radiology, Stead Family Children’s Hospital, University of Iowa, University of Iowa Hospitals and Clinics, 200 Hawkins Dr, 3889 JPP, Iowa City, IA 52242
| | - Yutaka Sato
- From the Department of Radiology, Stead Family Children’s Hospital, University of Iowa, University of Iowa Hospitals and Clinics, 200 Hawkins Dr, 3889 JPP, Iowa City, IA 52242
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28
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Rocha M, Singh N, Ahsan K, Beiriger A, Prince VE. Neural crest development: insights from the zebrafish. Dev Dyn 2019; 249:88-111. [PMID: 31591788 DOI: 10.1002/dvdy.122] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Revised: 09/21/2019] [Accepted: 09/22/2019] [Indexed: 12/12/2022] Open
Abstract
Our understanding of the neural crest, a key vertebrate innovation, is built upon studies of multiple model organisms. Early research on neural crest cells (NCCs) was dominated by analyses of accessible amphibian and avian embryos, with mouse genetics providing complementary insights in more recent years. The zebrafish model is a relative newcomer to the field, yet it offers unparalleled advantages for the study of NCCs. Specifically, zebrafish provide powerful genetic and transgenic tools, coupled with rapidly developing transparent embryos that are ideal for high-resolution real-time imaging of the dynamic process of neural crest development. While the broad principles of neural crest development are largely conserved across vertebrate species, there are critical differences in anatomy, morphogenesis, and genetics that must be considered before information from one model is extrapolated to another. Here, our goal is to provide the reader with a helpful primer specific to neural crest development in the zebrafish model. We focus largely on the earliest events-specification, delamination, and migration-discussing what is known about zebrafish NCC development and how it differs from NCC development in non-teleost species, as well as highlighting current gaps in knowledge.
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Affiliation(s)
- Manuel Rocha
- Committee on Development, Regeneration and Stem Cell Biology, The University of Chicago, Chicago, Illinois
| | - Noor Singh
- Department of Organismal Biology and Anatomy, The University of Chicago, Chicago, Illinois
| | - Kamil Ahsan
- Committee on Development, Regeneration and Stem Cell Biology, The University of Chicago, Chicago, Illinois
| | - Anastasia Beiriger
- Committee on Development, Regeneration and Stem Cell Biology, The University of Chicago, Chicago, Illinois
| | - Victoria E Prince
- Committee on Development, Regeneration and Stem Cell Biology, The University of Chicago, Chicago, Illinois.,Department of Organismal Biology and Anatomy, The University of Chicago, Chicago, Illinois
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29
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Koutlas IG, Dolan M, Lingen MW, Argyris PP. Plasmacytoid cells in salivary pleomorphic adenoma: an alternative interpretation of their immunohistochemical characteristics highlights function and capability for epithelial-mesenchymal transition. Oral Surg Oral Med Oral Pathol Oral Radiol 2019; 128:515-529. [PMID: 31400990 DOI: 10.1016/j.oooo.2019.01.081] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2018] [Revised: 01/02/2019] [Accepted: 01/29/2019] [Indexed: 12/11/2022]
Abstract
OBJECTIVES Plasmacytoid cells (PLCs) in salivary pleomorphic adenoma (SPA) are regarded as modified neoplastic myoepithelia and define plasmacytoid myoepithelioma (pMYO). However, histochemically, immunohistochemically and ultrastructurally, PLCs fail to demonstrate frank myogenous properties. Epithelial-mesenchymal transition (EMT) may explain the phenotypes in SPA. Our aim was to evaluate (1) PLCs with accepted or purported myoepithelial and EMT-related markers; and (2) pMYOs for PLAG1 aberrations by using fluorescence in situ hybridization. STUDY DESIGN Eight SPAs with or without PLC-predominance and 3 pMYOs were immunohistochemically studied. RESULTS PLCs in SPA and pMYO exhibited strong, scattered to diffuse positivity for K7, rare K14 positivity and were mostly negative for α-smooth muscle actin, h-caldesmon, and p63/p40. S100 staining was strong and diffuse, whereas calponin was variable. DOG1 was negative. PLCs in pMYO and PLC-rich SPA exhibited selective or diffuse WT1 and D2-40 immunoreactivity. EMT markers SNAIL/SLUG exhibited strong and variable immunoreactivity in PLCs in contrast to weak or absent E-cadherin expression. SOX10 was diffusely and strongly positive. PLAG1 rearrangement was present in 1 pMYO. CONCLUSIONS PLCs mostly fail to express myoepithelial markers; PLCs are neoplastic cells adapting to microenvironmental changes and capable of EMT; and tumors composed solely of PLCs are apparently SPAs depleted of a ductal component.
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Affiliation(s)
- Ioannis G Koutlas
- Division of Oral and Maxillofacial Pathology, School of Dentistry, University of Minnesota, Minneapolis, MN, USA.
| | - Michelle Dolan
- Department of Laboratory Medicine and Pathology, University of Minnesota Medical School, University of Minnesota, Minneapolis, MN, USA
| | - Mark W Lingen
- Department of Pathology, University of Chicago, Chicago, IL, USA
| | - Prokopios P Argyris
- Division of Oral and Maxillofacial Pathology, School of Dentistry, University of Minnesota, Minneapolis, MN, USA; Department of Biochemistry, Molecular Biology and Biophysics, College of Biological Sciences, University of Minnesota, Minneapolis, MN, USA
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30
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Shellard A, Mayor R. Integrating chemical and mechanical signals in neural crest cell migration. Curr Opin Genet Dev 2019; 57:16-24. [PMID: 31306988 PMCID: PMC6838680 DOI: 10.1016/j.gde.2019.06.004] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Revised: 05/20/2019] [Accepted: 06/09/2019] [Indexed: 12/17/2022]
Abstract
Neural crest cells are a multipotent embryonic stem cell population that migrate large distances to contribute a variety of tissues. The cranial neural crest, which contribute to tissues of the face and skull, undergo collective migration whose movement has been likened to cancer metastasis. Over the last few years, a variety of mechanisms for the guidance of collective cranial neural crest cell migration have been described: mostly chemical, but more recently mechanical. Here we review these different mechanisms and attempt to integrate them to provide a unified model of collective cranial neural crest cell migration.
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Affiliation(s)
- Adam Shellard
- Department of Cell and Developmental Biology, University College London, Gower Street, London WC1E 6BT, UK
| | - Roberto Mayor
- Department of Cell and Developmental Biology, University College London, Gower Street, London WC1E 6BT, UK.
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31
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Cdc42 activation by endothelin regulates neural crest cell migration in the cardiac outflow tract. Dev Dyn 2019; 248:795-812. [DOI: 10.1002/dvdy.75] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2018] [Revised: 06/06/2019] [Accepted: 06/07/2019] [Indexed: 02/06/2023] Open
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32
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Stedden CG, Menegas W, Zajac AL, Williams AM, Cheng S, Özkan E, Horne-Badovinac S. Planar-Polarized Semaphorin-5c and Plexin A Promote the Collective Migration of Epithelial Cells in Drosophila. Curr Biol 2019; 29:908-920.e6. [PMID: 30827914 PMCID: PMC6424623 DOI: 10.1016/j.cub.2019.01.049] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2018] [Revised: 12/14/2018] [Accepted: 01/18/2019] [Indexed: 12/29/2022]
Abstract
Collective migration of epithelial cells is essential for morphogenesis, wound repair, and the spread of many cancers, yet how individual cells signal to one another to coordinate their movements is largely unknown. Here, we introduce a tissue-autonomous paradigm for semaphorin-based regulation of collective cell migration. Semaphorins typically regulate the motility of neuronal growth cones and other migrating cell types by acting as repulsive cues within the migratory environment. Studying the follicular epithelial cells of Drosophila, we discovered that the transmembrane semaphorin, Sema-5c, promotes collective cell migration by acting within the migrating cells themselves, not the surrounding environment. Sema-5c is planar polarized at the basal epithelial surface such that it is enriched at the leading edge of each cell. This location places it in a prime position to send a repulsive signal to the trailing edge of the cell ahead to communicate directional information between neighboring cells. Our data show that Sema-5c can signal across cell-cell boundaries to suppress protrusions in neighboring cells and that Plexin A is the receptor that transduces this signal. Finally, we present evidence that Sema-5c antagonizes the activity of Lar, another transmembrane guidance cue that operates along leading-trailing cell-cell interfaces in this tissue, via a mechanism that appears to be independent of Plexin A. Together, our results suggest that multiple transmembrane guidance cues can be deployed in a planar-polarized manner across an epithelium and work in concert to coordinate individual cell movements for collective migration.
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Affiliation(s)
- Claire G Stedden
- Committee on Development, Regeneration, and Stem Cell Biology, The University of Chicago, 920 East 58(th) Street, Chicago, IL 60637, USA; Department of Molecular Genetics and Cell Biology, The University of Chicago, 920 East 58(th) Street, Chicago, IL 60637, USA
| | - William Menegas
- Department of Molecular Genetics and Cell Biology, The University of Chicago, 920 East 58(th) Street, Chicago, IL 60637, USA
| | - Allison L Zajac
- Department of Molecular Genetics and Cell Biology, The University of Chicago, 920 East 58(th) Street, Chicago, IL 60637, USA
| | - Audrey M Williams
- Department of Molecular Genetics and Cell Biology, The University of Chicago, 920 East 58(th) Street, Chicago, IL 60637, USA
| | - Shouqiang Cheng
- Department of Biochemistry and Molecular Biology, The University of Chicago, 929 East 57(th) Street, Chicago, IL 60637, USA
| | - Engin Özkan
- Department of Biochemistry and Molecular Biology, The University of Chicago, 929 East 57(th) Street, Chicago, IL 60637, USA
| | - Sally Horne-Badovinac
- Committee on Development, Regeneration, and Stem Cell Biology, The University of Chicago, 920 East 58(th) Street, Chicago, IL 60637, USA; Department of Molecular Genetics and Cell Biology, The University of Chicago, 920 East 58(th) Street, Chicago, IL 60637, USA.
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33
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Gil V, Del Río JA. Functions of Plexins/Neuropilins and Their Ligands during Hippocampal Development and Neurodegeneration. Cells 2019; 8:E206. [PMID: 30823454 PMCID: PMC6468495 DOI: 10.3390/cells8030206] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2019] [Revised: 02/22/2019] [Accepted: 02/24/2019] [Indexed: 12/22/2022] Open
Abstract
There is emerging evidence that molecules, receptors, and signaling mechanisms involved in vascular development also play crucial roles during the development of the nervous system. Among others, specific semaphorins and their receptors (neuropilins and plexins) have, in recent years, attracted the attention of researchers due to their pleiotropy of functions. Their functions, mainly associated with control of the cellular cytoskeleton, include control of cell migration, cell morphology, and synapse remodeling. Here, we will focus on their roles in the hippocampal formation that plays a crucial role in memory and learning as it is a prime target during neurodegeneration.
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Affiliation(s)
- Vanessa Gil
- Molecular and Cellular Neurobiotechnology, Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology (BIST), Parc Científic de Barcelona, 08028 Barcelona, Spain.
- Department of Cell Biology, Physiology and Immunology, Universitat de Barcelona, 08028 Barcelona, Spain.
- Center for Networked Biomedical Research on Neurodegenerative Diseases (CIBERNED), 08028 Barcelona, Spain.
- Institute of Neuroscience, University of Barcelona, 08028 Barcelona, Spain.
| | - José Antonio Del Río
- Molecular and Cellular Neurobiotechnology, Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology (BIST), Parc Científic de Barcelona, 08028 Barcelona, Spain.
- Department of Cell Biology, Physiology and Immunology, Universitat de Barcelona, 08028 Barcelona, Spain.
- Center for Networked Biomedical Research on Neurodegenerative Diseases (CIBERNED), 08028 Barcelona, Spain.
- Institute of Neuroscience, University of Barcelona, 08028 Barcelona, Spain.
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34
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Chen PC, Lin SZ, Xu GK, Li B, Feng XQ. Three-dimensional collective cell motions in an acinus-like lumen. J Biomech 2019; 84:234-242. [PMID: 30661732 DOI: 10.1016/j.jbiomech.2019.01.012] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Revised: 11/28/2018] [Accepted: 01/03/2019] [Indexed: 11/16/2022]
Abstract
Collective cell migration is an essential process in embryo development, wound healing, inflammatory response, and cancer invasion. Although cell motions in two-dimensional (2D) monolayers have been studied previously, three-dimensional (3D) collective cell migration, which constantly occurs during embryogenesis such as the establishment of ducts and acini in vivo, remains elusive. In this paper, we develop a cell-based model incorporating cell mechanics and cell motility to address coherent cell motions in a spherical acinus-like lumen with different cell populations. It is found that the interplays between cell persistence, random fluctuation, and geometrical confinement may engender rich and novel migratory modes. In a 3D spherical lumen, two cells may undergo stripe-like or cross-circular coherent rotations, whereas multiple cells can form dynamic twisting or circulating bands, leaving sparse cells at the center or even a hollow cavity in the cell aggregate. The cell density is found to profoundly influence the collective cell migration modes. Our model can reproduce the fundamental features observed in experiments and highlight the role of mechanics in steering 3D collective cell dynamics during mammary acinar morphogenesis.
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Affiliation(s)
- Peng-Cheng Chen
- Institute of Biomechanics and Medical Engineering, AML, Department of Engineering Mechanics, Tsinghua University, Beijing 100084, China
| | - Shao-Zhen Lin
- Institute of Biomechanics and Medical Engineering, AML, Department of Engineering Mechanics, Tsinghua University, Beijing 100084, China
| | - Guang-Kui Xu
- Department of Engineering Mechanics, State Key Laboratory for Strength and Vibration of Mechanical Structures, Xi'an Jiaotong University, Xi'an 710049, China
| | - Bo Li
- Institute of Biomechanics and Medical Engineering, AML, Department of Engineering Mechanics, Tsinghua University, Beijing 100084, China.
| | - Xi-Qiao Feng
- Institute of Biomechanics and Medical Engineering, AML, Department of Engineering Mechanics, Tsinghua University, Beijing 100084, China
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35
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Hao MM, Bergner AJ, Newgreen DF, Enomoto H, Young HM. Technologies for Live Imaging of Enteric Neural Crest-Derived Cells. Methods Mol Biol 2019; 1976:97-105. [PMID: 30977068 DOI: 10.1007/978-1-4939-9412-0_8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Time-lapse imaging of gut explants from embryonic mice in which neural crest-derived cells express fluorescent proteins allows the behavior of enteric neural crest cells to be observed and analyzed. Explants of embryonic gut are dissected, mounted on filter paper supports so the gut retains its tubular three-dimensional structure, and then placed in coverglass bottom culture dishes in tissue culture medium. A stainless steel ring is placed on top of the filter support to prevent movement. Imaging is performed using a confocal microscope in an environmental chamber. A z series of images through the network of fluorescent cells is collected every 3, 5, or 10 min. At the end of imaging, the z series are projected.
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Affiliation(s)
- Marlene M Hao
- Department of Anatomy and Neuroscience, University of Melbourne, Melbourne, VIC, Australia
- Laboratory for Enteric Neuroscience, TARGID, University of Leuven, Leuven, Belgium
| | - Annette J Bergner
- Department of Anatomy and Neuroscience, University of Melbourne, Melbourne, VIC, Australia
| | - Donald F Newgreen
- Murdoch Children's Research Institute, Royal Children's Hospital, Parkville, VIC, Australia
| | - Hideki Enomoto
- Division of Neural Differentiation and Regeneration, Department of Physiology and Cell Biology, Graduate School of Medicine, Kobe University, Kobe, Japan
- Core Research for Evolutional Science and Technology, Japan Science and Technology Agency, Saitama, Japan
| | - Heather M Young
- Department of Anatomy and Neuroscience, University of Melbourne, Melbourne, VIC, Australia
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36
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Vieceli FM, Bronner ME. Leukocyte receptor tyrosine kinase interacts with secreted midkine to promote survival of migrating neural crest cells. Development 2018; 145:dev.164046. [PMID: 30228102 DOI: 10.1242/dev.164046] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2018] [Accepted: 09/13/2018] [Indexed: 12/25/2022]
Abstract
Neural crest cells migrate long distances throughout the embryo and rely on extracellular signals that attract, repel and/or stimulate survival to ensure proper contribution to target derivatives. Here, we show that leukocyte receptor tyrosine kinase (LTK), an ALK-type receptor tyrosine kinase, is expressed by neural crest cells during early migratory stages in chicken embryos. Loss of LTK in the cranial neural crest impairs migration and results in increased levels of apoptosis. Conversely, midkine, previously proposed as a ligand for ALK, is secreted by the non-neural ectoderm during early neural crest migratory stages and internalized by neural crest cells in vivo Similar to loss of LTK, loss of midkine reduces survival of the migratory neural crest. Moreover, we show by proximity ligation and co-immunoprecipitation assays that midkine binds to LTK. Taken together, these results suggest that LTK in neural crest cells interacts with midkine emanating from the non-neural ectoderm to promote cell survival, revealing a new signaling pathway that is essential for neural crest development.
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Affiliation(s)
- Felipe Monteleone Vieceli
- Division of Biology and Biological Engineering, California Institute of Technology, 1200 E California Boulevard, Pasadena, CA 91125, USA
| | - Marianne E Bronner
- Division of Biology and Biological Engineering, California Institute of Technology, 1200 E California Boulevard, Pasadena, CA 91125, USA
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37
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TBC1d24-ephrinB2 interaction regulates contact inhibition of locomotion in neural crest cell migration. Nat Commun 2018; 9:3491. [PMID: 30154457 PMCID: PMC6113226 DOI: 10.1038/s41467-018-05924-9] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2017] [Accepted: 08/02/2018] [Indexed: 11/08/2022] Open
Abstract
Although Eph-ephrin signalling has been implicated in the migration of cranial neural crest (CNC) cells, it is still unclear how ephrinB transduces signals regulating this event. We provide evidence that TBC1d24, a putative Rab35-GTPase activating protein (Rab35 GAP), complexes with ephrinB2 via the scaffold Dishevelled (Dsh) and mediates a signal affecting contact inhibition of locomotion (CIL) in CNC cells. Moreover, we found that, in migrating CNC, the interaction between ephrinB2 and TBC1d24 negatively regulates E-cadherin recycling in these cells via Rab35. Upon engagement of the cognate Eph receptor, ephrinB2 is tyrosine phosphorylated, which disrupts the ephrinB2/Dsh/TBC1d24 complex. The dissolution of this complex leads to increasing E-cadherin levels at the plasma membrane, resulting in loss of CIL and disrupted CNC migration. Our results indicate that TBC1d24 is a critical player in ephrinB2 control of CNC cell migration via CIL.
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38
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Leal JI, Villaseca S, Beyer A, Toro-Tapia G, Torrejón M. Ric-8A, a GEF for heterotrimeric G-proteins, controls cranial neural crest cell polarity during migration. Mech Dev 2018; 154:170-178. [PMID: 30016646 DOI: 10.1016/j.mod.2018.07.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2018] [Revised: 06/23/2018] [Accepted: 07/12/2018] [Indexed: 11/28/2022]
Abstract
The neural crest (NC) is a transient embryonic cell population that migrates extensively during development. Ric-8A, a guanine nucleotide exchange factor (GEF) for different Gα subunits regulates cranial NC (CNC) cell migration in Xenopus through a mechanism that still remains to be elucidated. To properly migrate, CNC cells establish an axis of polarization and undergo morphological changes to generate protrusions at the leading edge and retraction of the cell rear. Here, we aim to study the role of Ric-8A in cell polarity during CNC cell migration by examining whether its signaling affects the localization of GTPase activity in Xenopus CNC using GTPase-based probes in live cells and aPKC and Par3 as polarity markers. We show that the levels of Ric-8A are critical during migration and affect the localization of polarity markers and the subcellular localization of GTPase activity, suggesting that Ric-8A, probably through heterotrimeric G-protein signaling, regulates cell polarity during CNC migration.
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Affiliation(s)
- Juan Ignacio Leal
- Laboratory of Signaling and Development (LSD), Chile; Group for the Study of Developmental Processes (GDeP), Department of Biochemistry and Molecular Biology, Faculty of Biological Sciences, University of Concepción, Casilla 160-C, Concepción, Chile
| | - Soraya Villaseca
- Laboratory of Signaling and Development (LSD), Chile; Group for the Study of Developmental Processes (GDeP), Department of Biochemistry and Molecular Biology, Faculty of Biological Sciences, University of Concepción, Casilla 160-C, Concepción, Chile
| | - Andrea Beyer
- Laboratory of Signaling and Development (LSD), Chile; Group for the Study of Developmental Processes (GDeP), Department of Biochemistry and Molecular Biology, Faculty of Biological Sciences, University of Concepción, Casilla 160-C, Concepción, Chile
| | - Gabriela Toro-Tapia
- Laboratory of Signaling and Development (LSD), Chile; Group for the Study of Developmental Processes (GDeP), Department of Biochemistry and Molecular Biology, Faculty of Biological Sciences, University of Concepción, Casilla 160-C, Concepción, Chile
| | - Marcela Torrejón
- Laboratory of Signaling and Development (LSD), Chile; Group for the Study of Developmental Processes (GDeP), Department of Biochemistry and Molecular Biology, Faculty of Biological Sciences, University of Concepción, Casilla 160-C, Concepción, Chile.
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Li Y, Zhang XT, Wang XY, Wang G, Chuai M, Münsterberg A, Yang X. Robo signaling regulates the production of cranial neural crest cells. Exp Cell Res 2017; 361:73-84. [PMID: 28987541 DOI: 10.1016/j.yexcr.2017.10.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2017] [Revised: 09/08/2017] [Accepted: 10/03/2017] [Indexed: 11/27/2022]
Abstract
Slit/Robo signaling plays an important role in the guidance of developing neurons in developing embryos. However, it remains obscure whether and how Slit/Robo signaling is involved in the production of cranial neural crest cells. In this study, we examined Robo1 deficient mice to reveal developmental defects of mouse cranial frontal and parietal bones, which are derivatives of cranial neural crest cells. Therefore, we determined the production of HNK1+ cranial neural crest cells in early chick embryo development after knock-down (KD) of Robo1 expression. Detection of markers for pre-migratory and migratory neural crest cells, PAX7 and AP-2α, showed that production of both was affected by Robo1 KD. In addition, we found that the transcription factor slug is responsible for the aberrant delamination/EMT of cranial neural crest cells induced by Robo1 KD, which also led to elevated expression of E- and N-Cadherin. N-Cadherin expression was enhanced when blocking FGF signaling with dominant-negative FGFR1 in half of the neural tube. Taken together, we show that Slit/Robo signaling influences the delamination/EMT of cranial neural crest cells, which is required for cranial bone development.
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Affiliation(s)
- Yan Li
- Division of Histology & Embryology, Key Laboratory for Regenerative Medicine of the Ministry of Education, Medical College, Jinan University, Guangzhou 510632, China; The key Laboratory of Assisted Circulation, Ministry of Health, The First Affiliated Hospital of Sun Yat-sen University, Sun Yat-Sen University, Guangzhou 510080, China
| | - Xiao-Tan Zhang
- Division of Histology & Embryology, Key Laboratory for Regenerative Medicine of the Ministry of Education, Medical College, Jinan University, Guangzhou 510632, China
| | - Xiao-Yu Wang
- Division of Histology & Embryology, Key Laboratory for Regenerative Medicine of the Ministry of Education, Medical College, Jinan University, Guangzhou 510632, China
| | - Guang Wang
- Division of Histology & Embryology, Key Laboratory for Regenerative Medicine of the Ministry of Education, Medical College, Jinan University, Guangzhou 510632, China
| | - Manli Chuai
- Division of Cell and Developmental Biology, University of Dundee, Dundee DD1 5EH, UK
| | - Andrea Münsterberg
- School of Biological Sciences, University of East Anglia, Norwich NR4 7TJ, UK
| | - Xuesong Yang
- Division of Histology & Embryology, Key Laboratory for Regenerative Medicine of the Ministry of Education, Medical College, Jinan University, Guangzhou 510632, China.
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40
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Gallik KL, Treffy RW, Nacke LM, Ahsan K, Rocha M, Green-Saxena A, Saxena A. Neural crest and cancer: Divergent travelers on similar paths. Mech Dev 2017; 148:89-99. [PMID: 28888421 PMCID: PMC5811199 DOI: 10.1016/j.mod.2017.08.002] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2017] [Revised: 08/20/2017] [Accepted: 08/24/2017] [Indexed: 12/29/2022]
Abstract
Neural crest cells are multipotent progenitors that dynamically interpret diverse microenvironments to migrate significant distances as a loosely associated collective and contribute to many tissues in the developing vertebrate embryo. Uncovering details of neural crest migration has helped to inform a general understanding of collective cell migration, including that which occurs during cancer metastasis. Here, we discuss several commonalities and differences of neural crest and cancer cell migration and behavior. First, we focus on some of the molecular pathways required for the initial specification and potency of neural crest cells and the roles of many of these pathways in cancer progression. We also describe epithelial-to-mesenchymal transition, which plays a critical role in initiating both neural crest migration and cancer metastasis. Finally, we evaluate studies that demonstrate myriad forms of cell-cell and cell-environment communication during neural crest and cancer collective migration to highlight the remarkable similarities in their molecular and cell biological regulation.
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Affiliation(s)
- Kristin L Gallik
- Department of Biological Sciences, University of Illinois at Chicago, Chicago, IL 60607, USA
| | - Randall W Treffy
- Department of Biological Sciences, University of Illinois at Chicago, Chicago, IL 60607, USA
| | - Lynne M Nacke
- Department of Biological Sciences, University of Illinois at Chicago, Chicago, IL 60607, USA
| | - Kamil Ahsan
- Department of Organismal Biology and Anatomy, University of Chicago, Chicago, IL 60637, USA
| | - Manuel Rocha
- Department of Organismal Biology and Anatomy, University of Chicago, Chicago, IL 60637, USA
| | - Abigail Green-Saxena
- Department of Biological Sciences, University of Illinois at Chicago, Chicago, IL 60607, USA
| | - Ankur Saxena
- Department of Biological Sciences, University of Illinois at Chicago, Chicago, IL 60607, USA.
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41
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Xu M, Li Y, Du J, Lin H, Cao S, Mao Z, Wu R, Liu M, Liu Y, Yin Q. PAX3 Promotes Cell Migration and CXCR4 Gene Expression in Neural Crest Cells. J Mol Neurosci 2017; 64:1-8. [PMID: 29134414 DOI: 10.1007/s12031-017-0995-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2017] [Accepted: 11/02/2017] [Indexed: 11/28/2022]
Abstract
Neural crest (NC) cells are a multipotent cell population with powerful migration ability during development. C-X-C chemokine receptor type 4 (CXCR4) is a chemokine receptor implicated to mediate NC migration in various species, whereas the underlying mechanism is not well documented yet. PAX3 is a critical transcription factor for the formation of neural crest and the migration and differentiation of NCs. In this study, we retrieved a potential PAX3 binding element in the promoter of the CXCR4 gene, and we further found that PAX3 could promote the expression of CXCR4 and facilitate the migration of NCs. We finally demonstrated that PAX3 could bind the promoter region of CXCR4 and increase CXCR4 transcription by luciferase assay and electrophoretic mobility shift assay (EMSA). These findings suggested that PAX3 is a pivotal modulator of NC migration via regulating CXCR4 expression.
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Affiliation(s)
- Man Xu
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu Province, 226001, China
| | - Yongle Li
- Department of Pediatric Surgery, Affiliated Hospital of Nantong University, Nantong, 226001, China.,Department of Pediatric Surgery, Wuxi People's Hospital, Wuxi, Jiangsu Province, 214023, China
| | - Jinfeng Du
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu Province, 226001, China
| | - Hengrong Lin
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu Province, 226001, China
| | - Sixian Cao
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu Province, 226001, China
| | - Zuming Mao
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu Province, 226001, China
| | - Ronghua Wu
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu Province, 226001, China
| | - Mei Liu
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu Province, 226001, China
| | - Yan Liu
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu Province, 226001, China.
| | - Qiyou Yin
- Department of Pediatric Surgery, Affiliated Hospital of Nantong University, Nantong, 226001, China.
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42
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Delloye-Bourgeois C, Bertin L, Thoinet K, Jarrosson L, Kindbeiter K, Buffet T, Tauszig-Delamasure S, Bozon M, Marabelle A, Combaret V, Bergeron C, Derrington E, Castellani V. Microenvironment-Driven Shift of Cohesion/Detachment Balance within Tumors Induces a Switch toward Metastasis in Neuroblastoma. Cancer Cell 2017; 32:427-443.e8. [PMID: 29017055 DOI: 10.1016/j.ccell.2017.09.006] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/16/2017] [Revised: 06/22/2017] [Accepted: 09/12/2017] [Indexed: 12/13/2022]
Abstract
Neuroblastoma (NB) is a childhood cancer arising from sympatho-adrenal neural crest cells. Disseminated forms have high frequency of multiple tumoral foci whose etiology remains unknown; NB embryonic origin limits investigations in patients and current models. We developed an avian embryonic model driving human NB tumorigenesis in tissues homologous to patients. We found that aggressive NBs display a metastatic mode, secondary dissemination via peripheral nerves and aorta. Through tumor transcriptional profiling, we found that NB dissemination is induced by the shutdown of a pro-cohesion autocrine signal, SEMA3C, which constrains the tumoral mass. Lowering SEMA3C levels shifts the balance toward detachment, triggering NB cells to collectively evade the tumor. Together with patient cohort analysis, this identifies a microenvironment-driven pro-metastatic switch for NB.
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Affiliation(s)
- Céline Delloye-Bourgeois
- University of Lyon, University of Lyon 1 Claude Bernard Lyon1, NeuroMyoGene Institute, CNRS UMR5310, INSERM U1217, 16 rue Raphael Dubois, F-69000 Lyon, France
| | - Lorette Bertin
- University of Lyon, University of Lyon 1 Claude Bernard Lyon1, NeuroMyoGene Institute, CNRS UMR5310, INSERM U1217, 16 rue Raphael Dubois, F-69000 Lyon, France
| | - Karine Thoinet
- University of Lyon, University of Lyon 1 Claude Bernard Lyon1, NeuroMyoGene Institute, CNRS UMR5310, INSERM U1217, 16 rue Raphael Dubois, F-69000 Lyon, France
| | - Loraine Jarrosson
- OncoFactory SAS, L'Atrium, 43 boulevard du 11 Novembre 1918, 69100 Villeurbanne, France
| | - Karine Kindbeiter
- University of Lyon, University of Lyon 1 Claude Bernard Lyon1, NeuroMyoGene Institute, CNRS UMR5310, INSERM U1217, 16 rue Raphael Dubois, F-69000 Lyon, France
| | - Thomas Buffet
- University of Lyon, University of Lyon 1 Claude Bernard Lyon1, NeuroMyoGene Institute, CNRS UMR5310, INSERM U1217, 16 rue Raphael Dubois, F-69000 Lyon, France
| | - Servane Tauszig-Delamasure
- University of Lyon, University of Lyon 1 Claude Bernard Lyon1, NeuroMyoGene Institute, CNRS UMR5310, INSERM U1217, 16 rue Raphael Dubois, F-69000 Lyon, France
| | - Muriel Bozon
- University of Lyon, University of Lyon 1 Claude Bernard Lyon1, NeuroMyoGene Institute, CNRS UMR5310, INSERM U1217, 16 rue Raphael Dubois, F-69000 Lyon, France
| | - Aurélien Marabelle
- Drug Development Department (DITEP), Gustave Roussy Cancer Campus (GRCC), INSERM U1015, 114 rue Edouard Vaillant, 94805 Villejuif, France
| | - Valérie Combaret
- Laboratory of Translational Research, Léon Bérard Centre, 28 rue Laennec, 69008 Lyon, France
| | - Christophe Bergeron
- Departments of Oncology and Clinical Research, Centre Léon Berard and Institut d'Hématologie et d'Oncologie Pédiatrique, 1 Place Professeur Joseph Renaut, 69008 Lyon, France
| | - Edmund Derrington
- University of Lyon, University of Lyon 1 Claude Bernard Lyon1, NeuroMyoGene Institute, CNRS UMR5310, INSERM U1217, 16 rue Raphael Dubois, F-69000 Lyon, France
| | - Valérie Castellani
- University of Lyon, University of Lyon 1 Claude Bernard Lyon1, NeuroMyoGene Institute, CNRS UMR5310, INSERM U1217, 16 rue Raphael Dubois, F-69000 Lyon, France.
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43
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Zhang P, Wang G, Lin Z, Wu Y, Zhang J, Liu M, Lee KKH, Chuai M, Yang X. Alcohol exposure induces chick craniofacial bone defects by negatively affecting cranial neural crest development. Toxicol Lett 2017; 281:53-64. [PMID: 28919490 DOI: 10.1016/j.toxlet.2017.09.010] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2017] [Revised: 09/09/2017] [Accepted: 09/13/2017] [Indexed: 10/25/2022]
Abstract
Excess alcohol consumption during pregnancy could lead to fetal alcohol syndrome (FAS). However, the molecular mechanism leading to craniofacial abnormality, a feature of FAS, is still poorly understood. The cranial neural crest cells (NCCs) contribute to the formation of the craniofacial bones. Therefore, NCCs exposed to ethanol was investigated - using chick embryos and in vitro explant culture as experimental models. We demonstrated that exposure to 2% ethanol induced craniofacial defects, which includes parietal defect, in the developing chick fetus. Immunofluorescent staining revealed that ethanol treatment downregulated Ap-2ɑ, Pax7 and HNK-1 expressions by cranial NCCs. Using double-immunofluorescent stainings for Ap-2ɑ/pHIS3 and Ap-2ɑ/c-Caspase3, we showed that ethanol treatment inhibited cranial NCC proliferation and increased NCC apoptosis, respectively. Moreover, ethanol treatment of the dorsal neuroepithelium increased Laminin, N-Cadherin and Cadherin 6B expressions while Cadherin 7 expression was repressed. In situ hybridization also revealed that ethanol treatment up-regulated Cadherin 6B expression but down-regulated slug, Msx1, FoxD3 and BMP4 expressions. In summary, our experimental results demonstrated that ethanol treatment interferes with the production of cranial NCCs by affecting the proliferation and apoptosis of these cells. In addition, ethanol affected the delamination, epithelial-mesenchymal transition (EMT) and cell migration of cranial NCCs, which may have contributed to the etiology of the craniofacial defects.
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Affiliation(s)
- Ping Zhang
- Key Laboratory for Regenerative Medicine of the Ministry of Education, Division of Histology & Embryology, Medical College, Jinan University, Guangzhou 510632, China
| | - Guang Wang
- Key Laboratory for Regenerative Medicine of the Ministry of Education, Division of Histology & Embryology, Medical College, Jinan University, Guangzhou 510632, China
| | - Zhuangling Lin
- Key Laboratory for Regenerative Medicine of the Ministry of Education, Division of Histology & Embryology, Medical College, Jinan University, Guangzhou 510632, China
| | - Yushi Wu
- Key Laboratory for Regenerative Medicine of the Ministry of Education, Division of Histology & Embryology, Medical College, Jinan University, Guangzhou 510632, China
| | - Jing Zhang
- Key Laboratory for Regenerative Medicine of the Ministry of Education, Division of Histology & Embryology, Medical College, Jinan University, Guangzhou 510632, China
| | - Meng Liu
- Key Laboratory for Regenerative Medicine of the Ministry of Education, Division of Histology & Embryology, Medical College, Jinan University, Guangzhou 510632, China
| | - Kenneth Ka Ho Lee
- Key Laboratory for Regenerative Medicine of the Ministry of Education, School of Biomedical Sciences, Chinese University of Hong Kong, Shatin, Hong Kong
| | - Manli Chuai
- Division of Cell and Developmental Biology, University of Dundee, Dundee, DD1 5EH, UK
| | - Xuesong Yang
- Key Laboratory for Regenerative Medicine of the Ministry of Education, Division of Histology & Embryology, Medical College, Jinan University, Guangzhou 510632, China.
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44
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Stepanik V, Dunipace L, Bae YK, Macabenta F, Sun J, Trisnadi N, Stathopoulos A. The migrations of Drosophila muscle founders and primordial germ cells are interdependent. Development 2017; 143:3206-15. [PMID: 27578182 DOI: 10.1242/dev.134346] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2015] [Accepted: 07/29/2016] [Indexed: 12/31/2022]
Abstract
Caudal visceral mesoderm (CVM) cells migrate from posterior to anterior of the Drosophila embryo as two bilateral streams of cells to support the specification of longitudinal muscles along the midgut. To accomplish this long-distance migration, CVM cells receive input from their environment, but little is known about how this collective cell migration is regulated. In a screen we found that wunen mutants exhibit CVM cell migration defects. Wunens are lipid phosphate phosphatases known to regulate the directional migration of primordial germ cells (PGCs). PGC and CVM cell types interact while PGCs are en route to the somatic gonadal mesoderm, and previous studies have shown that CVM impacts PGC migration. In turn, we found here that CVM cells exhibit an affinity for PGCs, localizing to the position of PGCs whether mislocalized or trapped in the endoderm. In the absence of PGCs, CVM cells exhibit subtle changes, including more cohesive movement of the migrating collective, and an increased number of longitudinal muscles is found at anterior sections of the larval midgut. These data demonstrate that PGC and CVM cell migrations are interdependent and suggest that distinct migrating cell types can coordinately influence each other to promote effective cell migration during development.
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Affiliation(s)
- Vincent Stepanik
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA 91125, USA
| | - Leslie Dunipace
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA 91125, USA
| | - Young-Kyung Bae
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA 91125, USA
| | - Frank Macabenta
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA 91125, USA
| | - Jingjing Sun
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA 91125, USA
| | - Nathanie Trisnadi
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA 91125, USA
| | - Angelike Stathopoulos
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA 91125, USA
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45
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Hakim V, Silberzan P. Collective cell migration: a physics perspective. REPORTS ON PROGRESS IN PHYSICS. PHYSICAL SOCIETY (GREAT BRITAIN) 2017; 80:076601. [PMID: 28282028 DOI: 10.1088/1361-6633/aa65ef] [Citation(s) in RCA: 100] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Cells have traditionally been viewed either as independently moving entities or as somewhat static parts of tissues. However, it is now clear that in many cases, multiple cells coordinate their motions and move as collective entities. Well-studied examples comprise development events, as well as physiological and pathological situations. Different ex vivo model systems have also been investigated. Several recent advances have taken place at the interface between biology and physics, and have benefitted from progress in imaging and microscopy, from the use of microfabrication techniques, as well as from the introduction of quantitative tools and models. We review these interesting developments in quantitative cell biology that also provide rich examples of collective out-of-equilibrium motion.
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Affiliation(s)
- Vincent Hakim
- Laboratoire de Physique Statistique, Ecole Normale Supérieure, CNRS, PSL Research University, UPMC, Paris, France
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46
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Sasse S, Klämbt C. Repulsive Epithelial Cues Direct Glial Migration along the Nerve. Dev Cell 2017; 39:696-707. [PMID: 27997826 DOI: 10.1016/j.devcel.2016.11.016] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2016] [Revised: 10/14/2016] [Accepted: 11/19/2016] [Indexed: 11/29/2022]
Abstract
Most glial cells show pronounced migratory abilities and generally follow axonal trajectories to reach their final destination. However, the molecular cues controlling their directional migration are largely unknown. To address this, we established glial migration onto the developing Drosophila leg imaginal disc as a model. Here, CNS-derived glial cells move along nerves containing motoaxons and sensory axons. Along their path, glial cells encounter at least three choice points where directional decisions are needed. Subsequent genetic analyses allowed uncovering mechanisms that escaped previous studies. Most strikingly, we found that glial cells require the expression of the repulsive guidance receptors PlexinA/B and Robo2 to prevent breaking away from the nerve. Interestingly, the repulsive ligands are presented by the underlying leg imaginal disc epithelium, which appears to push glial cells toward the axon fascicle. In conclusion, nerve formation not only requires neuron-glia interaction but also depends on glial-epithelial communication.
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Affiliation(s)
- Sofia Sasse
- Institut für Neuro- und Verhaltensbiologie, Badestraße 9, 48149 Münster, Germany
| | - Christian Klämbt
- Institut für Neuro- und Verhaltensbiologie, Badestraße 9, 48149 Münster, Germany.
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47
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Toro-Tapia G, Villaseca S, Leal JI, Beyer A, Fuentealba J, Torrejón M. Xenopus as a model organism to study heterotrimeric G-protein pathway during collective cell migration of neural crest. Genesis 2017; 55. [PMID: 28095644 DOI: 10.1002/dvg.23008] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2016] [Revised: 11/22/2016] [Accepted: 11/24/2016] [Indexed: 01/03/2023]
Abstract
Collective cell migration is essential in many fundamental aspects of normal development, like morphogenesis, organ formation, wound healing, and immune responses, as well as in the etiology of severe pathologies, like cancer metastasis. In spite of the huge amount of data accumulated on cell migration, such a complex process involves many molecular actors, some of which still remain to be functionally characterized. One of these signals is the heterotrimeric G-protein pathway that has been studied mainly in gastrulation movements. Recently we have reported that Ric-8A, a GEF for Gα proteins, plays an important role in neural crest migration in Xenopus development. Xenopus neural crest cells, a highly migratory embryonic cell population induced at the border of the neural plate that migrates extensively in order to differentiate in other tissues during development, have become a good model to understand the dynamics that regulate cell migration. In this review, we aim to provide sufficient evidence supporting how useful Xenopus model with its different tools, such as explants and transplants, paired with improved in vivo imaging techniques, will allow us to tackle the multiple signaling mechanisms involved in neural crest cell migration.
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Affiliation(s)
- G Toro-Tapia
- Departamento de Bioquímica y Biología Molecular, Facultad de Ciencias Biológicas, Universidad de Concepción, Casilla 160-C, Concepción, Chile
| | - S Villaseca
- Departamento de Bioquímica y Biología Molecular, Facultad de Ciencias Biológicas, Universidad de Concepción, Casilla 160-C, Concepción, Chile
| | - J I Leal
- Departamento de Bioquímica y Biología Molecular, Facultad de Ciencias Biológicas, Universidad de Concepción, Casilla 160-C, Concepción, Chile
| | - A Beyer
- Departamento de Bioquímica y Biología Molecular, Facultad de Ciencias Biológicas, Universidad de Concepción, Casilla 160-C, Concepción, Chile
| | - J Fuentealba
- Departamento de Bioquímica y Biología Molecular, Facultad de Ciencias Biológicas, Universidad de Concepción, Casilla 160-C, Concepción, Chile
| | - M Torrejón
- Departamento de Bioquímica y Biología Molecular, Facultad de Ciencias Biológicas, Universidad de Concepción, Casilla 160-C, Concepción, Chile
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48
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Sculpting the labyrinth: Morphogenesis of the developing inner ear. Semin Cell Dev Biol 2017; 65:47-59. [DOI: 10.1016/j.semcdb.2016.09.015] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2016] [Revised: 07/26/2016] [Accepted: 09/25/2016] [Indexed: 01/23/2023]
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49
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Friedl P, Mayor R. Tuning Collective Cell Migration by Cell-Cell Junction Regulation. Cold Spring Harb Perspect Biol 2017; 9:cshperspect.a029199. [PMID: 28096261 DOI: 10.1101/cshperspect.a029199] [Citation(s) in RCA: 210] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Collective cell migration critically depends on cell-cell interactions coupled to a dynamic actin cytoskeleton. Important cell-cell adhesion receptor systems implicated in controlling collective movements include cadherins, immunoglobulin superfamily members (L1CAM, NCAM, ALCAM), Ephrin/Eph receptors, Slit/Robo, connexins and integrins, and an adaptive array of intracellular adapter and signaling proteins. Depending on molecular composition and signaling context, cell-cell junctions adapt their shape and stability, and this gradual junction plasticity enables different types of collective cell movements such as epithelial sheet and cluster migration, branching morphogenesis and sprouting, collective network migration, as well as coordinated individual-cell migration and streaming. Thereby, plasticity of cell-cell junction composition and turnover defines the type of collective movements in epithelial, mesenchymal, neuronal, and immune cells, and defines migration coordination, anchorage, and cell dissociation. We here review cell-cell adhesion systems and their functions in different types of collective cell migration as key regulators of collective plasticity.
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Affiliation(s)
- Peter Friedl
- Department of Cell Biology, Radboud University Medical Centre, Nijmegen 6525GA, The Netherlands.,David H. Koch Center for Applied Research of Genitourinary Cancers, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030.,Cancer Genomics Center, 3584 CG Utrecht, The Netherlands
| | - Roberto Mayor
- Department of Cell and Developmental Biology, University College London, London WC1E 6BT, United Kingdom
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50
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Taneyhill LA, Schiffmacher AT. Should I stay or should I go? Cadherin function and regulation in the neural crest. Genesis 2017; 55. [PMID: 28253541 DOI: 10.1002/dvg.23028] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2016] [Revised: 02/21/2017] [Accepted: 02/27/2017] [Indexed: 12/20/2022]
Abstract
Our increasing comprehension of neural crest cell development has reciprocally advanced our understanding of cadherin expression, regulation, and function. As a transient population of multipotent stem cells that significantly contribute to the vertebrate body plan, neural crest cells undergo a variety of transformative processes and exhibit many cellular behaviors, including epithelial-to-mesenchymal transition (EMT), motility, collective cell migration, and differentiation. Multiple studies have elucidated regulatory and mechanistic details of specific cadherins during neural crest cell development in a highly contextual manner. Collectively, these results reveal that gradual changes within neural crest cells are accompanied by often times subtle, yet important, alterations in cadherin expression and function. The primary focus of this review is to coalesce recent data on cadherins in neural crest cells, from their specification to their emergence as motile cells soon after EMT, and to highlight the complexities of cadherin expression beyond our current perceptions, including the hypothesis that the neural crest EMT is a transition involving a predominantly singular cadherin switch. Further advancements in genetic approaches and molecular techniques will provide greater opportunities to integrate data from various model systems in order to distinguish unique or overlapping functions of cadherins expressed at any point throughout the ontogeny of the neural crest.
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Affiliation(s)
- Lisa A Taneyhill
- Department of Animal and Avian Sciences, University of Maryland, College Park, Maryland, 20742
| | - Andrew T Schiffmacher
- Department of Animal and Avian Sciences, University of Maryland, College Park, Maryland, 20742
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