Download or read book Epigenetic Characterization of Ovarian Cancer written by and published by . This book was released on 2008 with total page 105 pages. Available in PDF, EPUB and Kindle. Book excerpt: The overall objective of this research was to identify genes that are aberrantly methylated in epithelial ovarian cancer. Our approach was to treat or mock treat primary normal or tumor cultured cells with drugs that inhibit DNA methyltransferase activity and then perform microarray analysis to identify genes that are likely to exhibit methylation-mediated silencing. We also employed similar analysis of 43 ovarian cell lines. Two major criteria identified genes likely to be methylated: maximum fold-change in expression following drug treatment, and a high standard deviation in expression among untreated cells. These criteria were validated using a gene set known to exhibit methylation in other cancers and led to prediction of a total of 360 methylated genes in ovarian cancer, among which 32 were validated. Genes involved in TGF-beta pathway activity were overrepresented among the candidates, and their methylation status was confirmed. Pathway activity was found to increase when DNA methyltransferase activity is inhibited, indicating coordinate epigenetic suppression of this pathway in ovarian cancer.
Download or read book Characterization of Novel Epigenetic Targets in Ovarian Cancer written by Zhi Qiang Wang and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Introduction to Epigenetics written by Renato Paro and published by Springer Nature. This book was released on 2021-03-23 with total page 215 pages. Available in PDF, EPUB and Kindle. Book excerpt: This open access textbook leads the reader from basic concepts of chromatin structure and function and RNA mechanisms to the understanding of epigenetics, imprinting, regeneration and reprogramming. The textbook treats epigenetic phenomena in animals, as well as plants. Written by four internationally known experts and senior lecturers in this field, it provides a valuable tool for Master- and PhD- students who need to comprehend the principles of epigenetics, or wish to gain a deeper knowledge in this field. After reading this book, the student will: Have an understanding of the basic toolbox of epigenetic regulation Know how genetic and epigenetic information layers are interconnected Be able to explain complex epigenetic phenomena by understanding the structures and principles of the underlying molecular mechanisms Understand how misregulated epigenetic mechanisms can lead to disease
Download or read book Diagnosis and Management of Ovarian Disorders written by Albert Altchek and published by Elsevier. This book was released on 2003-09-04 with total page 595 pages. Available in PDF, EPUB and Kindle. Book excerpt: This updated second edition of Diagnosis and Management of Ovarian Disorders provides thorough, yet succinct insight into the ever-changing realm of ovarian disorders. It presents a novel multidisciplinary approach to the subject as described by clinicians, surgeons, pathologists, basic scientists and related medical researchers. Topics covered include reproductive technology, early diagnosis of ovarian cancer, and management of menopause among others. The breadth of information provided by this book will appeal to clinicians and researchers involved in the study and treatment of ovarian disorders. KEY FEATURES* Includes updated information on early diagnosis of ovarian cancer* Reviews new diagnostic techniques for ovarian disorders* Discusses latest information on reproductive technology* Presents translational treatment linking laboratory research with clinical medicine
Download or read book Ovarian Cancers written by National Academies of Sciences, Engineering, and Medicine and published by National Academies Press. This book was released on 2016-04-25 with total page 397 pages. Available in PDF, EPUB and Kindle. Book excerpt: In an era of promising advances in cancer research, there are considerable and even alarming gaps in the fundamental knowledge and understanding of ovarian cancer. Researchers now know that ovarian cancer is not a single disease-several distinct subtypes exist with different origins, risk factors, genetic mutations, biological behaviors, and prognoses. However, persistent questions have impeded progress toward improving the prevention, early detection, treatment, and management of ovarian cancers. Failure to significantly improve morbidity and mortality during the past several decades is likely due to several factors, including the lack of research being performed by specific disease subtype, lack of definitive knowledge of the cell of origin and disease progression, and incomplete understanding of genetic and non-genetic risk factors. Ovarian Cancers examines the state of the science in ovarian cancer research, identifies key gaps in the evidence base and the challenges to addressing those gaps, considers opportunities for advancing ovarian cancer research, and examines avenues for translation and dissemination of new findings and communication of new information to patients and others. This study makes recommendations for public- and private-sector efforts that could facilitate progress in reducing the incidence of morbidity and mortality from ovarian cancers.
Download or read book Genomic and Epigenomic Characterization of Global DNA Hypomethylation in Human Epithelial Ovarian Cancer written by Wa Zhang and published by . This book was released on 2014 with total page 249 pages. Available in PDF, EPUB and Kindle. Book excerpt: Epithelial ovarian cancer (EOC), and all other solid tumor types investigated to date, contain a variable proportion of tumors characterized by global DNA hypomethylation (GDHO). This phenotype is known to involve loss of DNA methylation at repetitive elements and at single copy gene promoters of cancer germline (CG)/cancer testis (CT) antigens. GDHO in EOC has also been linked to tumor progression and reduced survival. Despite the apparent clinical importance of DNA hypomethylation, we currently have a limited understanding of the origin, the targets, and the consequences of GDHO in EOC. To reveal the underlying mechanisms and molecular pathology of GDHO in cancer, we used gene expression profiling and methylome sequencing to determine the molecular differences between hypomethylated EOC samples and normally methylated EOC samples. The gene expression pattern was distinct in hypomethylated EOC, with more than half of differentially expressed genes (DEGs) upregulated. A large number of epigenetic related genes and histones were differentially expressed in hypomethylated EOC. In addition, many CG antigens were upregulated in hypomethylated EOC, including those not previously known to be regulated by DNA methylation in EOC, for example PRAME and CT45. Notably, one of the most significantly altered pathways in hypomethylated tumors was cellular growth and proliferation, including the FOXM1 pathway, implicating enhanced proliferation in phenotype. Methylome analysis revealed that DNA hypomethylation is not evenly dispersed across the genome, but is regionally localized, including prominent alterations at nuclear lamina associated domains (LADs). Taken together, our data show that DNA hypomethylation in EOC is linked to global gene activation, proliferation, and nuclear disorganization. These mechanisms may account for the poor prognosis and reduced survival of patients showing DNA hypomethylation. Our study is the first detailed investigation of the genomic and the epigenomic characteristics of GDHO in human epithelial EOC, and sheds light on the connection of this important epigenetic phenotype with carcinogenesis.
Download or read book Clinical Gynecology written by Eric J. Bieber and published by Cambridge University Press. This book was released on 2015-04-23 with total page 1127 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written with the busy practice in mind, this book delivers clinically focused, evidence-based gynecology guidance in a quick-reference format. It explores etiology, screening, tests, diagnosis, and treatment for a full range of gynecologic health issues. The coverage includes the full range of gynecologic malignancies, reproductive endocrinology and infertility, infectious diseases, urogynecologic problems, gynecologic concerns in children and adolescents, and surgical interventions including minimally invasive surgical procedures. Information is easy to find and absorb owing to the extensive use of full-color diagrams, algorithms, and illustrations. The new edition has been expanded to include aspects of gynecology important in international and resource-poor settings.
Download or read book Holland Frei Cancer Medicine written by Robert C. Bast, Jr. and published by John Wiley & Sons. This book was released on 2017-03-10 with total page 2004 pages. Available in PDF, EPUB and Kindle. Book excerpt: Holland-Frei Cancer Medicine, Ninth Edition, offers a balanced view of the most current knowledge of cancer science and clinical oncology practice. This all-new edition is the consummate reference source for medical oncologists, radiation oncologists, internists, surgical oncologists, and others who treat cancer patients. A translational perspective throughout, integrating cancer biology with cancer management providing an in depth understanding of the disease An emphasis on multidisciplinary, research-driven patient care to improve outcomes and optimal use of all appropriate therapies Cutting-edge coverage of personalized cancer care, including molecular diagnostics and therapeutics Concise, readable, clinically relevant text with algorithms, guidelines and insight into the use of both conventional and novel drugs Includes free access to the Wiley Digital Edition providing search across the book, the full reference list with web links, illustrations and photographs, and post-publication updates
Download or read book Epigenetic Silencing of Microrna 199b 5p Leads to Chemoresistance Via Activation of Jag1 Jagged1 in Ovarian Cancer written by Xin Liu and published by . This book was released on 2017-01-26 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation, "Epigenetic Silencing of MicroRNA-199b-5p Leads to Chemoresistance via Activation of JAG1 (jagged1) in Ovarian Cancer" by Xin, Liu, 刘昕, was obtained from The University of Hong Kong (Pokfulam, Hong Kong) and is being sold pursuant to Creative Commons: Attribution 3.0 Hong Kong License. The content of this dissertation has not been altered in any way. We have altered the formatting in order to facilitate the ease of printing and reading of the dissertation. All rights not granted by the above license are retained by the author. Abstract: Epithelial ovarian cancer is a leading fatal malignancy in women. The high mortality rate of this cancer is due to the poor prognosis and that the majority of patients are diagnosed at late stage. Therefore, a combination of cytoreduction and adjuvant chemotherapy is the only choice for this disease at late stage. Platinum-based chemotherapy regimens are the first line treatment for ovarian cancer. However, the repetitive challenges of platinum-based agents and the frequent relapse cause acquired chemoresistance which is the major obstacle for clinical management of this disease. The underlying molecular mechanism for acquired chemoresistance remains largely unclear. Therefore, understanding the molecular mechanism in acquired chemoresistance of ovarian cancer is urgently needed. Emerging evidence has suggested that dysregulation of miRNAs is significantly involved in acquired chemoresistance in human cancers. In this study, the expression status and functional roles of miR-199b-5p were characterized in the chemoresistance of ovarian cancer. By miRCURY LNA(TM) miRNA array, miR-199b-5p was one of the downregulated miRNAs identified in acquired chemoresistant ovarian cancer cells. Further Q-PCR analysis found that miR-199b-5p exhibited a pattern of progressive reduction from early to advanced stage and from low to high grade ovarian cancer tissue samples (N=79). Interestingly, the expression of miR-199b-5p could be restored upon 5-Aza-2''-deoxycytidine (5-Aza-dC) treatment in ovarian cancer cells. Methylation-specific PCR and bisulfite genomic sequencing revealed that the promoter region of miR-199b-5p (Chromosome9q34) was frequently hypermethylated in chemoresistant ovarian cancer cells. Functionally, enforced expression of miR-199b-5p remarkably diminished the cisplatin-resistance in miR-199b-5p low expressing ovarian cancer cells, whereas depletion of miR-199b-5p by siRNA approach augmented cisplatin-resistance in miR-199b-5p high expressing ovarian cancer cells. A tumor xenograft mouse model further confirmed that miR-199b-5p could sensitize ovarian cancer cells to cisplatin-mediated tumor growth inhibition in vivo. On the other aspect, computational analysis plus luciferase reporter assay and western blotting identified JAG1, a key ligand of Notch1 signaling frequently associated with chemoresistance of human cancers, as a direct target of miR-199b-5p in ovarian cancer cells. Intriguingly, an inverse relationship between the downregulation of miR-199b-5p and the upregulation of JAG1 was found by in situ hybridization (ISH) and immunohistochemical (IHC) analyses in a commercial ovarian cancer tissue array (OVC1021). Functionally, enforced expression of JAG1 increased cisplatin resistance of ovarian cancer cells. In contrast, depletion of JAG1 by siRNA approach abrogated the cisplatin-resistance of ovarian cancer cells. This finding was in consistent with the effect of enforced expression of miR199b-5p in cisplatin-resistant ovarian cancer cells. Mechanistically, the Notch1 luciferase reporter assay and western blotting analysis demonstrated that the Notch1 signaling activity could be activated by JAG1 or conversely be inhibited by enforced expression of miR-199b-5p. Further investigation using the Notch specific inhibitor γ-secretase showed that JAG1-Notch1 signaling is a crucial pathway associated with chemoresistance of ovarian cancer in vitr
Download or read book Epigenetic Mechanisms in Cancer written by Sabita Saldanha and published by Academic Press. This book was released on 2017-11-16 with total page 394 pages. Available in PDF, EPUB and Kindle. Book excerpt: Epigenetic Mechanisms in Cancer provides a comprehensive analysis of epigenetic signatures that govern disease development, progression and metastasis. Epigenetic signatures dictating tumor etiologies present an opportunity for biomarker identification which has broad potential for improving diagnosis, prognosis, prediction, and risk assessment. This volumes offers a unique evaluation of signature differences in childhood, sex-specific and race-specific cancers, and in doing so broadly illuminates the scope of epigenetic biomarkers in clinical environments. Chapters detail the major epigenetic process in humans consisting of DNA methylation, histone modifications and microRNAs (miRNAs) involved in the initiation, progression and metastasis of tumors. Also delineated are recent technologies such as next generation sequencing that are used to identify epigenetic profiles (primarily methylation analysis) in samples (normal, benign and cancerous) and which are highly important to the analysis of epigenetic outcomes. Offers broad coverage that is applicable to audiences in various area of cancer research - population studies, diagnostics, prognosis, prediction, therapy, risk, etc. Provides critical review analysis of the topics that will clarify and delineate the potential roles of epigenetic signatures in cancer management Covers basic, as well as, clinical areas of epigenetic mechanisms in tumorigenesis Features contributions by leading experts in the field Provides comprehensive coverage of current epigenetic signatures involved in the etiology of various cancers and miRNAs
Download or read book Epigenetic Biomarker and Personalized Precision Medicine written by Jiucun Wang and published by Frontiers Media SA. This book was released on 2020-12-21 with total page 485 pages. Available in PDF, EPUB and Kindle. Book excerpt: This eBook is a collection of articles from a Frontiers Research Topic. Frontiers Research Topics are very popular trademarks of the Frontiers Journals Series: they are collections of at least ten articles, all centered on a particular subject. With their unique mix of varied contributions from Original Research to Review Articles, Frontiers Research Topics unify the most influential researchers, the latest key findings and historical advances in a hot research area! Find out more on how to host your own Frontiers Research Topic or contribute to one as an author by contacting the Frontiers Editorial Office: frontiersin.org/about/contact.
Download or read book Systems Biology of Cancer written by Sam Thiagalingam and published by Cambridge University Press. This book was released on 2015-04-09 with total page 597 pages. Available in PDF, EPUB and Kindle. Book excerpt: An overview of the current systems biology-based knowledge and the experimental approaches for deciphering the biological basis of cancer.
Download or read book Epigenetic Therapy of Cancer written by Michael Lübbert and published by Springer Science & Business Media. This book was released on 2013-12-12 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt: The growing knowledge about disturbances of epigenetic gene regulation in hematopoietic stem cell disorders is now being translated into treatment approaches that target the epigenetic defects pharmacologically. This book first presents the latest evidence regarding the epigenetic regulation of hematopoietic stem cell differentiation and hemoglobin production. The significance of DNA methylation abnormalities in hematopoietic disorders and of epigenetic disturbances in lung cancer and other solid tumors is then discussed. A major part of the book, however, relates specifically to the translation of basic research and drug development to clinical applications, and in this context both present and future clinical strategies are considered. Individual chapters are devoted to the use of DNA hypomethylating agents and chromatin-modifying agents, and the treatment of hematologic malignancies and solid tumors by means of epigenetic agents is discussed in detail.
Download or read book The Epithelial to Mesenchymal Transition EMT in Cancer written by Joëlle Roche and published by MDPI. This book was released on 2018-04-09 with total page 261 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a printed edition of the Special Issue "The Epithelial-to-Mesenchymal Transition (EMT) in Cancer" that was published in Cancers
Download or read book Characterization of Genetic Alterations in Ovarian Cancer written by and published by . This book was released on 2000 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ovarian cancer is a highly lethal malignancy specific to women. We have set up the infrastructure at Mayo for an Ovarian Cancer Research Program utilizing the rich resources of clinical material. This Program Project focuses specifically upon a genetic analysis of ovarian cancer using the transcriptional profiling strategies of cDNA microarrays and subtraction suppression hybridization. We have linked the work of cancer geneticists with cell biologists to begin to understand the functional role that some of the consistently aberrantly-regulated genes play in ovarian cancer development. There are three projects in this grant. The first project focuses on the identification of consistently down-regulated genes in ovarian cancer. The second project focuses on the role of gene amplification in familial versus sporadic ovarian cancer. The third project is to characterize genes that are consistently down-regulated in ovarian tumors that are derived from within common fragile site regions. This Program Project is centered within a larger institutional effort to better understand the biology of the development of ovarian cancer and to devise better strategies for the prevention, early detection, and treatment of this lethal disease.
Download or read book Environmental Epigenetics written by L. Joseph Su and published by Springer. This book was released on 2015-05-18 with total page 327 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book examines the toxicological and health implications of environmental epigenetics and provides knowledge through an interdisciplinary approach. Included in this volume are chapters outlining various environmental risk factors such as phthalates and dietary components, life states such as pregnancy and ageing, hormonal and metabolic considerations and specific disease risks such as cancer cardiovascular diseases and other non-communicable diseases. Environmental Epigenetics imparts integrative knowledge of the science of epigenetics and the issues raised in environmental epidemiology. This book is intended to serve both as a reference compendium on environmental epigenetics for scientists in academia, industry and laboratories and as a textbook for graduate level environmental health courses. Environmental Epigenetics imparts integrative knowledge of the science of epigenetics and the issues raised in environmental epidemiology. This book is intended to serve both as a reference compendium on environmental epigenetics for scientists in academia, industry and laboratories and as a textbook for graduate level environmental health courses.
Download or read book Surgery for Ovarian Cancer written by Robert E. Bristow and published by CRC Press. This book was released on 2019-02-21 with total page 437 pages. Available in PDF, EPUB and Kindle. Book excerpt: Updated and expanded, the third edition of Surgery for Ovarian Cancer focuses on essential techniques for the effective management of ovarian cancer. It reflects the most contemporary science and surgical applications for the management of patients with ovarian cancer and related peritoneal surface malignancies. This new edition takes a step-by-step approach and includes new intraoperative photographs and videos illustrating surgical procedures. It is principally devoted to the technical aspects of cytoreductive surgery, with chapters divided according to anatomic region. The chapters cover relevant anatomical considerations, surgical challenges specific to each region, and operative approaches and techniques favored by the authors. The list of contributing authors has been expanded from the previous edition and includes international and world-renowned experts from the fields of gynecologic oncology and surgical oncology. The topics of minimally invasive surgery, secondary cytoreduction, palliative surgery, and postoperative care are also covered in detail. New to the third edition are chapters on preoperative risk stratification, regional therapeutics and peritonectomy procedures, and quality assurance relating to ovarian cancer surgery. This comprehensive text is essential reading for all practitioners working with patients with ovarian cancers.
