Embryonic Development: Cellular aspects PDF Download

Author: Max M. Burger
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 720

View

Book Description

Author: Edward B. Burger
Publisher:
ISBN: 9780471563716
Category :
Languages : en
Pages :

View

Book Description

Author:
Publisher:
ISBN:
Category : Developmental cytology
Languages : en
Pages : 0

View

Book Description

Author: International Society of Developmental Biologists. International Congress
Publisher:
ISBN:
Category :
Languages : en
Pages : 669

View

Book Description

Author: Juan J. Sanz-Ezquerro
Publisher: Frontiers Media SA
ISBN: 2889453464
Category :
Languages : en
Pages : 179

View

Book Description
The formation of a complex multicellular organism from a single cell is one of the most amazing processes of biology. Embryonic development is characterised by the careful regulation of cellular behaviours such that cells proliferate, migrate, differentiate and form tissues at the correct place and time. These processes are genetically controlled and depend both on the history of cells, their lineage, and on the activities of signalling pathways, which coordinate the cell interactions leading to organogenesis. The aim of the Frontiers research topic “Signalling pathways in embryonic development” has been to provide a forum for experts in cell and developmental biology to share recent advances in the field of signalling during embryonic development. Sixteen articles in a variety of formats are united in this Topic, offering a valuable collection for researchers looking for an update in the knowledge of signalling pathways operating during embryogenesis. The works, focused mainly on vertebrates, explore different aspects of this theme from cell communication to organ formation and have implications for areas as distant as evolution or pathology. Understanding developmental signalling pathways is important for several reasons. It gives us information about basic mechanisms of cell function and interactions needed for morphogenesis and organogenesis. It uncovers the basis of congenital malformations, since errors at any step of cell signalling during development are a major cause of defects. This fundamental insight gives us clues to understand the mechanisms operating in evolution that explain diversity in form and function. And finally, it allows the identification of possible causes of disease in the adult organism (such as cancer or degenerative diseases) pinpointing possible targets for therapeutic approaches.

Author: Daniel D. Carson
Publisher: Springer Science & Business Media
ISBN: 146121548X
Category : Medical
Languages : en
Pages : 336

View

Book Description
This volume contains the proceedings of the International Symposium on Embryo Implantation: Molecular, Cellular and Clinical Aspects, held from October 3-6, 1997 in Newport Beach, California. Internationally recognized experts discuss the development and future of human in vitro fertilization and embryo implantation, the cellular aspects of implantation, hormonal regulation, molecular markers of receptivity, trophoblast factors, primate models and animal studies, and transcriptional regulation of maternal-fetal recognition.

Author: Bruce Alberts
Publisher:
ISBN: 9780815332183
Category : Cytology
Languages : en
Pages : 0

View

Book Description

Author: Florence Louise Marlow
Publisher: Morgan & Claypool Publishers
ISBN: 161504051X
Category : Family & Relationships
Languages : en
Pages : 221

View

Book Description
Eggs of all animals contain mRNAs and proteins that are supplied to or deposited in the egg as it develops during oogenesis. These maternal gene products regulate all aspects of oocyte development, and an embryo fully relies on these maternal gene products for all aspects of its early development, including fertilization, transitions between meiotic and mitotic cell cycles, and activation of its own genome. Given the diverse processes required to produce a developmentally competent egg and embryo, it is not surprising that maternal gene products are not only essential for normal embryonic development but also for fertility. This review provides an overview of fundamental aspects of oocyte and early embryonic development and the interference and genetic approaches that have provided access to maternally regulated aspects of vertebrate development. Some of the pathways and molecules highlighted in this review, in particular, Bmps, Wnts, small GTPases, cytoskeletal components, and cell cycle regulators, are well known and are essential regulators of multiple aspects of animal development, including oogenesis, early embryogenesis, organogenesis, and reproductive fitness of the adult animal. Specific examples of developmental processes under maternal control and the essential proteins will be explored in each chapter, and where known conserved aspects or divergent roles for these maternal regulators of early vertebrate development will be discussed throughout this review. Table of Contents: Introduction / Oogenesis: From Germline Stem Cells to Germline Cysts / Oocyte Polarity and the Embryonic Axes: The Balbiani Body, an Ancient Oocyte Asymmetry / Preparing Developmentally Competent Eggs / Egg Activation / Blocking Polyspermy / Cleavage/ Mitosis: Going Multicellular / Maternal-Zygotic Transition / Reprogramming: Epigenetic Modifications and Zygotic Genome Activation / Dorsal-Ventral Axis Formation before Zygotic Genome Activation in Zebrafish and Frogs / Maternal TGF-β and the Dorsal-Ventral Embryonic Axis / Maternal Control After Zygotic Genome Activation / Compensation by Stable Maternal Proteins / Maternal Contributions to Germline Establishment or Maintenance / Perspective / Acknowledgments / References

Author: Steven B. Oppenheimer
Publisher: Prentice Hall
ISBN:
Category : Science
Languages : en
Pages : 552

View

Book Description
Ideal for those with little or no background in genetics and cellular or developmental biology, this exploration of embryology and the molecular aspects of development explains each concept from first principles.

Author: D. R. Garrod
Publisher: Springer
ISBN:
Category : Science
Languages : en
Pages : 68

View

Book Description
1. 1. Aspects of development. usually competent to develop in several differ- If you have been fortunate enough to see a fIlm ent ways. Thus the mesenchyme cells of the of the development of any multicellular organ- embryonic chick limb bud may become, among ism or, better still, to watch live embyros devel- other things, muscle or cartilage cells. Differen- oping, the intricate beauty of the developmental tiation is largely an intracellular process involv- process will not have escaped you: nor will its ing the appearance of cells with certain bio- complexity. Apparent complexity, however, is chemically or cytologically recognizable charac- no reason for despair when one begins to think teristics through the differential activation of in terms of analysing development. Rather, it is genes whose products confer these character- istics on the cello In skeletal muscle cells for astimulus to the first and most important ana- lytical step, that of simplifying the problem by example, specific proteins (actin and myosin) dividing it into aspects which can be meaning- are synthesized, and arranged to give the typical fully studied. striated appearance (Fig. l. la). (Differentiation is the subject of another book in this series, The most obvious way to divide development is on a chronological basis - to begin with ferti- 'Cell Differentiation' by J. M. Ashworth. ) lization and proceed through cleavage, blastu- Recent advances in molecular biology have greatly stimulated research into differentiation lation and gastrulation to organ fromation.