Download or read book Control of C Elegans Development by the Conserved RNA Regulators FBF and FOG 1 written by Beth Ellen Thompson and published by . This book was released on 2006 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Molecular Controls of Mitosis meiosis Decision in C Elegans by Conserved RNA Regulators FBF and GLD 2 written by Nayoung Suh and published by . This book was released on 2007 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Self renewal Regulatory Hub in C Elegans written by Kimberly Ann Haupt and published by . This book was released on 2019 with total page 219 pages. Available in PDF, EPUB and Kindle. Book excerpt: Stem cells are responsible for tissue growth, maintenance and repair and are thus essential in multicellular organisms across lifespan. The persistence of stem cells is accomplished by self-renewal, where stem cells divide to make more of themselves. While many factors that contribute to self-renewal have been identified, the mechanistic underpinnings of this process have remained elusive. A powerful model system for the in vivo study of self-renewal is C. elegans germline stem cells (GSCs). GSC self-renewal requires niche signaling to activate transcription of two target genes, lst-1 and sygl-1. This work demonstrates that both LST-1 and SYGL-1 are potent GSC regulators and that each alone is sufficient for self-renewal. The spatial restriction of their expression facilitates GSC homeostasis in the tissue, and their function relies on two PUF RNA binding proteins, FBF-1 and FBF-2. LST-1 and SYGL-1 each partner with FBF to repress differentiation genes post-transcriptionally. LST-1 interacts physically with FBF, and disruption of the interaction interface abrogates LST-1 function. Two additional PUF RNA binding proteins, PUF-3 and PUF-11, also have a role in GSC self-renewal and function redundantly with FBF. Together, the four PUF proteins and two PUF partners compose a robust regulatory hub that controls self-renewal in C. elegans GSCs. This model may serve as a paradigm for the intrinsic controls of self-renewal in other systems.
Download or read book Germ Cell Development in C elegans written by Tim Schedl and published by Springer Science & Business Media. This book was released on 2012-08-09 with total page 434 pages. Available in PDF, EPUB and Kindle. Book excerpt: Germ cells in sexually reproducing metazoa, through the germline lineage, are the route by which genetic material and cytoplasmic constituents are passed from one generation to the next in the continuum of life. Chapters in this book review germ cell development in the model organism Caenorhabditis elegans, discussing the biology, the genetics and the molecular mechanisms for various processes, as well as drawing comparisons with other organisms. Processes discussed include specification of germ cell fate, meiosis, gametogenesis, environmental/ physiological controls, epigenetics and translational control, fertilization and the oocyte-to-embryo transition. This book thus provides a comprehensive picture of the germline lineage and the continuum of life for the worm.
Download or read book Germline Stem Cells written by Steven X. Hou and published by Humana Press. This book was released on 2014-10-15 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this comprehensive and cutting-edge book, leading experts explore the parameters that define germline stem cells and the mechanisms that regulate the cell behavior in order to better isolate, characterize and maintain them. The volume begins by providing protocols for germline stem cell identification and regulation in model organisms, and concludes with detailed chapters covering current techniques involving in vitro culture and the applications of the cells.
Download or read book Genetic Control of Cell Fate Specification in Caenorhabditis Elegans Germline written by SRIVALLI MAMILLAPALLI and published by . This book was released on 2015 with total page 75 pages. Available in PDF, EPUB and Kindle. Book excerpt: The precise regulation of germ cell fates (sperm or oocyte) lies at the heart of reproduction and fertility. The nematode Caenorhabditis elegans hermaphrodites produce a discrete number of sperm during larval development and then switch to produce oocyte during adulthood. A number of positive (e.g., fbf genes) and negative (e.g., gld-3) regulators are important for this switch. Here, we found that aberrant activation of MPK-1 (an ERK homolog) by removal of both fbf-1 and lip-1 partially inhibits sperm-oocyte switch, resulting in Mog (masculinization of germline) sterility. The fbf-1 gene encodes a conserved PUF (Pumilio and FBF) RNA-binding protein and the lip-1 gene encodes an MPK-1/ERK phosphatase. Notably, inhibition of MPK-1/ERK signaling by either genetic mutation or chemical inhibition reprograms the germ cell fate and thus helps in regaining the fertility. We also found that fbf-1; lip-1 Mog sterility was enhanced by the depletion of G2/M cell cycle regulators, including CYB-3/Cyclin B, CDK-1/CDK1, and CDC-25.1/CDC25. Markedly, cdc-25.1 mRNA is a direct target of FBF-1. These results suggest that FBF-1 and LIP-1 may promote sperm-oocyte switch by activating MPK-1/ERK signaling and G2/M cell cycle progression.
Download or read book Molecular Signaling in Spermatogenesis and Male Infertility written by Rajender Singh and published by CRC Press. This book was released on 2019-11-06 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt: Spermatogenesis involves the coordination of a number of signaling pathways, which culminate into production of sperm. Its failure results in male factor infertility, which can be due to hormonal, environmental, genetic or other unknown factors. This book includes chapters on most of the signaling pathways known to contribute to spermatogenesis. Latest research in germ cell signaling like the role of small RNAs in spermatogenesis is also discussed. This book aims to serve as a reference for both clinicians and researchers, explaining possible causes of infertility and exploring various treatment methods for management through the basic understanding of the role of molecular signaling. Key Features Discusses the signaling pathways that contribute to successful spermatogenesis Covers comprehensive information about Spermatogenesis at one place Explores the vital aspects of male fertility and infertility Explains the epigenetic regulation of germ cell development and fertility Highlights the translational opportunities in molecular signaling in testis
Download or read book Dorland s Dictionary of Medical Acronyms and Abbreviations written by Dorland and published by Elsevier Health Sciences. This book was released on 2015-07-24 with total page 481 pages. Available in PDF, EPUB and Kindle. Book excerpt: Medical acronyms and abbreviations offer convenience, but those countless shortcuts can often be confusing. Now a part of the popular Dorland's suite of products, this reference features thousands of terms from across various medical specialties. Its alphabetical arrangement makes for quick reference, and expanded coverage of symbols ensures they are easier to find. Effective communication plays an important role in all medical settings, so turn to this trusted volume for nearly any medical abbreviation you might encounter. - Symbols section makes it easier to locate unusual or seldom-used symbols. - Convenient alphabetical format allows you to find the entry you need more intuitively. - More than 90,000 entries and definitions. - Many new and updated entries including terminology in expanding specialties, such as Nursing; Physical, Occupational, and Speech Therapies; Transcription and Coding; Computer and Technical Fields. - New section on abbreviations to avoid, including Joint Commission abbreviations that are not to be used. - Incorporates updates suggested by the Institute for Safe Medication Practices (ISMP).
Download or read book Transcriptional and Translational Regulation of Stem Cells written by Gary Hime and published by Springer Science & Business Media. This book was released on 2013-05-22 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume describes the latest findings on transcriptional and translational regulation of stem cells. Both transcriptional activators and repressors have been shown to be crucial for the maintenance of the stem cell state. A key element of stem cell maintenance is repression of differentiation factors or developmental genes – achieved transcriptionally, epigenetically by the Polycomb complex, and post-transcriptionally by RNA-binding proteins and microRNAs. This volume takes two approaches to this topic – (1) illustrating the general principles outlined above through a series of different stem cell examples – embryonic, iPS and adult stem cells, and (2) describing several molecular families that have been shown to have roles in regulation of multiple stem cell populations.
Download or read book Dissertation Abstracts International written by and published by . This book was released on 2006 with total page 886 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Translational Control of Gene Expression written by Nahum Sonenberg and published by CSHL Press. This book was released on 2001 with total page 1034 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the 1996 publication of Translational Control, there has been fresh interest in protein synthesis and recognition of the key role of translation control mechanisms in regulating gene expression. This new monograph updates and expands the scope of the earlier book but it also takes a fresh look at the field. In a new format, the first eight chapters provide broad overviews, while each of the additional twenty-eight has a focus on a research topic of more specific interest. The result is a thoroughly up-to-date account of initiation, elongation, and termination of translation, control mechanisms in development in response to extracellular stimuli, and the effects on the translation machinery of virus infection and disease. This book is essential reading for students entering the field and an invaluable resource for investigators of gene expression and its control.
Download or read book Dictionary of Medical Acronyms and Abbreviations written by Stanley Jablonski and published by Hanley & Belfus. This book was released on 2004-09 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This dictionary lists acronyms and abbreviations occurring with a reasonable frequency in the literature of medicine and the health care professions. Abbreviations and acronyms are given in capital letters, with no punctuation, and with concise definitions. The beginning sections also include symbols, genetic symbols, and the Greek alphabet and symbols.
Download or read book Post Transcriptional Regulation by STAR Proteins written by Talila Volk and published by Springer Science & Business Media. This book was released on 2011-01-11 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book examines the available information on the structure of the RNA binding STAR domain and provides insights into how these proteins discriminate between different RNA targets. It reviews what is known about STAR proteins and human disease.
Download or read book na written by Mike de la Flor and published by Academic Press. This book was released on with total page 653 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sex Determination and Sexual Development written by and published by Academic Press. This book was released on 2009-01-19 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume reviews our current understanding for how sex determination is initiated and how it results in sexual dimorphic development. Chapters discussing work on different model systems provide a basis for understanding similarities that exist between different species. Coverage includes discussion of sexual development of the soma in C. elegans; sexual development of the germline in C. elegans; sexual development of the soma in Drosophila; sexual development of the germline in Drosophila; sexual development of the soma in the mouse; sexual development of the germline in the mouse; control of sex-specific behavior in Drosophila; and control of sex-specific behavior in vertebrates. - Uncovers the latest research findings on sexual determination and sexual development - Model systems illustrate key sexual similarities - Explores in-depth the origins of sex specific behavior
Download or read book RNA Infrastructure and Networks written by Lesley J. Collins and published by Springer Science & Business Media. This book was released on 2011-09-15 with total page 297 pages. Available in PDF, EPUB and Kindle. Book excerpt: RNAs form complexes with proteins and other RNAs. The RNA‐infrastructure represents the spatiotemporal interaction of these proteins and RNAs in a cell‐wide network. RNA Infrastructure and Networks brings together these ideas to illustrate the scope of RNA‐based biology, and how connecting RNA mechanisms is a powerful tool to investigate regulatory pathways. This book is but a taste of the wide range of RNA‐based mechanisms that connect in the RNA infrastructure.
Download or read book Oogenesis written by Marie-Helene Verlhac and published by John Wiley & Sons. This book was released on 2010-03-04 with total page 516 pages. Available in PDF, EPUB and Kindle. Book excerpt: Oogenesis - the process by which female germ cells develop into mature eggs, or ova - is a complex process involving many important elements of developmental and cellular biology: from cell-cell interactions, complex signalling cascades, specialized cell cycles and cytoskeleton organization. Oocytes from various species (including clam, starfish, xenopus and mouse) are excellent model systems to study the biochemistry of cell division with important implications for basic and clinical research. This book describes the entire process of oogenesis in chronological order with contributions from leading international researchers and chapters covering medical and ethical considerations in oogenic biology. Topics include sex determination and gonadal development, control of meiotic chromosome pairing and homologous recombination, control of meiotic divisions and the remodelling of the oocyte into a totipotent zygote as well as medically-assisted reproduction. This volume is an essential resource for all students, researchers and clinicians in developmental and reproductive biology. Key features: Reaches beyond the study of simply meiosis to cover all aspects of oogenesis Synthesizes recent advances in the field, drawing on studies from different model species Chapter sequence designed to follow the time line in vivo Written by an international panel of expert researchers
