Transcriptional Control of Neural Crest Development


Book Description

The neural crest is a remarkable embryonic population of cells found only in vertebrates and has the potential to give rise to many different cell types contributing throughout the body. These derivatives range from the mesenchymal bone and cartilage comprising the facial skeleton, to neuronal derivatives of the peripheral sensory and autonomic nervous systems, to melanocytes throughout the body, and to smooth muscle of the great arteries of the heart. For these cells to correctly progress from an unspecifi ed, nonmigratory population to a wide array of dynamic, differentiated cell types-some of which retain stem cell characteristics presumably to replenish these derivatives-requires a complex network of molecular switches to control the gene programs giving these cells their defi ning structural, enzymatic, migratory, and signaling capacities. This review will bring together current knowledge of neural crest-specifi c transcription factors governing these progressions throughout the course of development. A more thorough understanding of the mechanisms of transcriptional control in differentiation will aid in strategies designed to push undifferentiated cells toward a particular lineage, and unraveling these processes will help toward reprogramming cells from a differentiated to a more naive state. Table of Contents: Introduction / AP Genes / bHLH Genes / ETS Genes / Fox Genes / Homeobox Genes / Hox Genes / Lim Genes / Pax Genes / POU Domain Genes / RAR/RXR Genes / Smad Genes / Sox Genes / Zinc Finger Genes / Other Miscellaneous Genes / References / Author Biographies




HOX Genes


Book Description

A subgroup of homeobox genes, which play an important role in the developmental processes of a variety of multicellular organisms, Hox genes have been shown to play a critical role in vertebrate pattern formation. Hox genes can be thought of as general purpose control genes—that is, they are similar in many organisms and direct the same processes in a variety of organisms, from mouse, to fly, to human. - Provides researchers an overview and synthesis of the latest research findings and contemporary thought in the area - Inclusion of chapters that discuss the evolutionary development of a wide variety of organisms - Gives researchers and clinicians insight into how defective Hox genes trigger developmental abnormalities in embryos




Hox Genes


Book Description

In his 1894 book, Materials for the Study of Variation, William Bateson coined the term Homoeosis with the following prose: The case of the modification of the antenna of an insect into a foot, of the eye of a Crustacean into an antenna, of a petal into a stamen, and the like, are examples of the same kind. It is desirable and indeed necessary that such Variations, which consist in the assumption by one member of a Meristic series, of the form or characters proper to other members of the series, should be recognized as constituting a distinct group of phenomena. ...I therefore propose...the term HOMOEOSIS...; for the essential phenomenon is not that there has merely been a change, but that something has been changed into the likeness of something else. The book was intended as a listing of the kinds of naturally occurring variation that could act as a substrate for the evolutionary process and Bateson took his examples from collections, both private and in museums, of materials displaying morphological oddities. Interestingly the person who also coined the term “Genetics” proffered little in the way of speculation on the possible genetic underpinnings of these oddities. It wasn’t until the early part of the next century that these changes in meristic series were shown to be heritable.




Guidebook to the Homeobox Genes


Book Description

This much-needed guidebook provides research workers with the most up-to-date reference available on homeobox genes. As the tenth anniversary of the discovery of the homeobox fast approaches, these genes are being isolated from an ever-widening group of organisms and are now understood as critical to numerous developmental processes. But the rapidly increasing pool of information on homeobox genes has often resulted in a lack of coordination in the use of nomenclature and classification systems. As a result, the field has been sometimes characterized by its confusing and scattered literature. This book provides an overview of the subject by summarizing the dispersed findings and by listing key references. The first two chapters give a brief historical account of the discovery of the homeobox and introduce the reader to its role in development. The third chapter provides comprehensive coverage to the classification and structural organization of the homeobox genes. Finally, short descriptions of individual homeobox genes are provided in alphabetical order at the end of the book. Guidebook to the Homeobox Genes, with its easy-to-use format, offers a quick and simple way to learn about the essentials of each gene with cogent descriptions and helpful references . It will be welcomed by students and professionals in developmental biology, molecular genetics, and molecular biology.




Patterning and Cell Type Specification in the Developing CNS and PNS


Book Description

The genetic, molecular, and cellular mechanisms of neural development are essential for understanding evolution and disorders of neural systems. Recent advances in genetic, molecular, and cell biological methods have generated a massive increase in new information, but there is a paucity of comprehensive and up-to-date syntheses, references, and historical perspectives on this important subject. The Comprehensive Developmental Neuroscience series is designed to fill this gap, offering the most thorough coverage of this field on the market today and addressing all aspects of how the nervous system and its components develop. Particular attention is paid to the effects of abnormal development and on new psychiatric/neurological treatments being developed based on our increased understanding of developmental mechanisms. Each volume in the series consists of review style articles that average 15-20pp and feature numerous illustrations and full references. Volume 1 offers 48 high level articles devoted mainly to patterning and cell type specification in the developing central and peripheral nervous systems. - Series offers 144 articles for 2904 full color pages addressing ways in which the nervous system and its components develop - Features leading experts in various subfields as Section Editors and article Authors - All articles peer reviewed by Section Editors to ensure accuracy, thoroughness, and scholarship - Volume 1 sections include coverage of mechanisms which: control regional specification, regulate proliferation of neuronal progenitors and control differentiation and survival of specific neuronal subtypes, and controlling development of non-neural cells




HOX Gene Expression


Book Description

Hox Gene Expression starts with the amazing discovery of the homeobox twenty-three years ago and follows the exciting path thereafter of a series of breakthroughs in Genetics, Development and Evolution. It deals with homeotic genes, their evolution, structure, normal and abnormal function. Researchers and graduate students in biology and medicine will benefit from this integrated overview of Hox gene activities.




Endless Forms Most Beautiful


Book Description

As described in this fascinating book, Evo Devo is evolutionary development biology, the third revolution in the science, which shows how the endless forms of animals--butterflies and zebras, trilobites and dinosaurs, apes and humans--were made and evolved.




The Regulatory Genome


Book Description

Gene regulatory networks are the most complex, extensive control systems found in nature. The interaction between biology and evolution has been the subject of great interest in recent years. The author, Eric Davidson, has been instrumental in elucidating this relationship. He is a world renowned scientist and a major contributor to the field of developmental biology. The Regulatory Genome beautifully explains the control of animal development in terms of structure/function relations of inherited regulatory DNA sequence, and the emergent properties of the gene regulatory networks composed of these sequences. New insights into the mechanisms of body plan evolution are derived from considerations of the consequences of change in developmental gene regulatory networks. Examples of crucial evidence underscore each major concept. The clear writing style explains regulatory causality without requiring a sophisticated background in descriptive developmental biology. This unique text supersedes anything currently available in the market. - The only book in the market that is solely devoted to the genomic regulatory code for animal development - Written at a conceptual level, including many novel synthetic concepts that ultimately simplify understanding - Presents a comprehensive treatment of molecular control elements that determine the function of genes - Provides a comparative treatment of development, based on principles rather than description of developmental processes - Considers the evolutionary processes in terms of the structural properties of gene regulatory networks - Includes 42 full-color descriptive figures and diagrams




The Neural Crest in Development and Evolution


Book Description

A discussion of the neural crest and neural crest cells, dealing with their discovery, their embryological and evolutionary origins, their cellular derivatives - in both agnathan and jawed vertebrates or gnathostomes - and the broad topics of migration and differentiation in normal development. The book also considers what goes wrong when development is misdirected by mutations, or by exposure of embryos to exogenous agents such as drugs, alcohol, or excess vitamin A, and includes discussions of tumours and syndromes and birth defects involving neural crest cells.




Principles of Developmental Genetics


Book Description

Unlike anything currently available in the market, Dr. Sally A. Moody and a team of world-renowned experts provide a groundbreaking view of developmental genetics that will influence scientific approaches in embryology, comparative biology, as well as the newly emerging fields of stem cell biology and regenerative medicine. Principles of Developmental Genetics highlights the intersection of developmental biology with new revolutionary genomic technologies, and details how these advances have accelerated our understanding of the molecular genetic processes that regulates development. This definitive resource provides researchers with the opportunity to gain important insights into the clinical applicability of emerging new technologies and animal model data. This book is a must-have for all researchers in genetics, developmental biology, regenerative medicine, and stem cell biology.• Includes new research not previously published in any other book on the molecular geneticprocesses that regulates development• Chapters present a broad understanding on the application of animal model systems, allowingresearchers to better treat clinical disorders and comprehend human development• Relates the application of new technologies to the manipulation of stem cells, causes ofhuman birth defects, and several human disease conditions• Each chapter includes a bulleted summary highlighting clinical aspects of animal models