Read Books Online and Download eBooks, EPub, PDF, Mobi, Kindle, Text Full Free.
Epigenetic Basis For The Regulation Of Estrogen Receptor Alpha Activity In Breast Cancer Cells
Download Epigenetic Basis For The Regulation Of Estrogen Receptor Alpha Activity In Breast Cancer Cells full books in PDF, epub, and Kindle. Read online Epigenetic Basis For The Regulation Of Estrogen Receptor Alpha Activity In Breast Cancer Cells ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Book Synopsis Epigenetic Basis for the Regulation of Estrogen Receptor Alpha Activity in Breast Cancer Cells by :
Download or read book Epigenetic Basis for the Regulation of Estrogen Receptor Alpha Activity in Breast Cancer Cells written by and published by . This book was released on 2009 with total page 47 pages. Available in PDF, EPUB and Kindle. Book excerpt: A key factor involved in breast cancer development and progression is the estrogen receptor alpha (ER). Genome-wide computational studies on ER have identified over 70,000 putative Estrogen Response Elements (EREs) in the human genome. However, a genome-wide functional study using ChIP-Chip, has indicated that less than 1/10 of all putative ER binding sites are recognized by the receptor following estrogen stimulation in breast cancer cells. Through genome-wide positional analyses, we demonstrate that ER recruitment is dependent on a specific epigenetic signature characterized by mono and dimethylation of lysine 4 on histone 3 (H3K4me1/me2). Furthermore the pioneer factor FoxA1 translates this epigenetic signature into changes in chromatin structure in a cell type-specific manner for transcription factors, such as ER. Hence, this allows for the establishment of lineage-specific transcriptional enhancers and programs.
Book Synopsis Epigenetic Regulation by Estrogen Receptor in Breast Cancer Cells by : Athéna Sklias
Download or read book Epigenetic Regulation by Estrogen Receptor in Breast Cancer Cells written by Athéna Sklias and published by . This book was released on 2019 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Previous epidemiological and experimental studies have strongly implicated estrogens in breast cancer risk and Estrogen Receptor (ER), the transcription factor to which estrogen binds, is considered as the major molecular driver of around 70% breast cancers. The importance of the deregulated estrogen signalling is further highlighted by increasing evidence that current chemopreventive and therapeutic strategies that target hormonally responsive breast cancers frequently result in the development of resistance to anti-estrogens and metastatic progression, highlighting the need for understanding the molecular underlying mechanisms. While until recently, ER was believed to act as a stand-alone transcription factor, which can directly bind its motifs in DNA, it is now accepted that ER activity is a complex and dynamic process that requires highly concerted actions of a dozen transcriptional cofactors and various chromatin regulators at DNA. Recent studies focused on characterising ER-associated cofactors and their role in opening the chromatin provided a remarkable insight into transcriptional regulation mediated by ER. However DNA methylation and histone acetylation are poorly understood in the context of ER's dynamic binding. In this thesis, I combined a cell culture protocol adapted for studying estradiol (E2) deprivation and re-stimulation in stricto sensu in ER-positive breast cancer cells with the latest methylation array, that allowed a genome-wide interrogation of DNA methylation (including a comprehensive panel of enhancers). I further investigated histone acetylation (ChIP-seq) and transcriptome (RNA-seq) after E2 deprivation and re-stimulation to better characterise the ability of ER to coordinate gene regulation. I found that E2 deprivation and re-stimulation result in time-dependent DNA methylation changes and in histone acetylation across diverse genomic regions, many of which overlap with enhancers. Further enrichment analysis of transcription factor (TF) binding and motif occurrence highlights the importance of ER tethering mainly through two partner TF families, AP-1 and FOX, in the proximity of enhancers that are differentially methylated and acetylated. This is the first study that comprehensively characterized DNA methylation at enhancers in response to inhibition and activation of ER signalling. The transcriptome and genome occupancy data further reinforced the notion that ER activity may orchestrate a broad transcriptional programme through regulating a limited panel of critical enhancers. Finally, the E2 re-stimulation experiments revealed that although the majority of the observed epigenetic changes induced by E2 deprivation could be largely reversed when the cells were re-stimulated we show that DNA hypermethylation and H3K27 acetylation at enhancers as well as several gene expression changes are selectively retained. The partial reversibility can be interpreted as a sign of treatment efficiency but also as a mechanism by which ER activity may contribute to endocrine resistance. This study provides entirely new information that constitutes a major advance in our understanding of the events by which ER and its cofactors mediate changes in DNA methylation and chromatin states at enhancers. These findings should open new avenues for studying role of the deregulated estrogen signalling in the mechanism underlying the “roots” of endocrine resistance that commonly develops in response to anti-estrogen therapy.
Book Synopsis Molecular basis of epigenetic regulation in cancer therapies by : Ángeles Carlos Reyes
Download or read book Molecular basis of epigenetic regulation in cancer therapies written by Ángeles Carlos Reyes and published by Frontiers Media SA. This book was released on 2023-02-10 with total page 313 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Regulation of Estrogen Receptor-alpha Mediated Gene Expression and Endocrine Resistance Through Estrogen Receptor-alpha Phosphorylation and Micro-RNA in Breast Cancer by : Kyuri Kim
Download or read book Regulation of Estrogen Receptor-alpha Mediated Gene Expression and Endocrine Resistance Through Estrogen Receptor-alpha Phosphorylation and Micro-RNA in Breast Cancer written by Kyuri Kim and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Estrogens are associated with the development and progression of breast cancer in addition to their role in normal reproductive physiology, and estrogen receptors (ER) mediate the actions of estrogen in target tissues by regulating the expression of numerous biologically important target genes. The progression of human breast cancer and the development of resistance to endocrine therapies are thought to be associated with ER phosphorylation. We generated multiple combinations of ER phospho-mutants, at residues serine 104, 106, 118, 167, 236, and 305, and examined their impact on receptor half-life, the agonist and antagonist balance of selective estrogen receptor modulators (SERMs) and selective estrogen receptor downregulators (SERDs), the regulation of ER transcriptional activity, and stimulation of cell proliferation in response to estradiol and SERMs/SERD. We showed that changes in ER affecting the phosphorylation status of the receptor greatly impact receptor function and differential SERM and SERD modulated cellular responses that could contribute to resistance to endocrine therapies in breast cancer. We also studied the regulation of microRNAs (miRNAs) by estradiol and growth factors through ER and extracellular signal-regulated kinase 2 (ERK2) in order to understand their physiological impact on breast cancer. We identified nine miRNA- encoding genes harboring overlapping ER and ERK2 binding sites close to their transcription start sites, which require ER and ERK2 for transcriptional induction as well as estradiol- mediated miRNA regulation. We then identified TP63, a target of miR-101, miR-190 and miR- 196a2, and showed that TP63 plays an important role in estradiol- or growth factor-mediated cellular response in breast cancer cells (MCF-7 and MDA-MB-231) by increasing tumor cell growth and in vitro invasion mainly controlled by miR-196a2 action. These results suggest a tumor-suppressive role of miR-196a2 in regulating TP63 expression and the aggressive behavior of breast cancers.
Book Synopsis Reactivation of Estrogen Receptor-[alpha] (ER[alpha] by Bioactive Dietary Compounds Through Epigenetic Mechanisms in ER[alpha]-negative Breast Cancer Cells by : Shweta Naran Patel
Download or read book Reactivation of Estrogen Receptor-[alpha] (ER[alpha] by Bioactive Dietary Compounds Through Epigenetic Mechanisms in ER[alpha]-negative Breast Cancer Cells written by Shweta Naran Patel and published by . This book was released on 2011 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Activation of Estrogen Receptor Alpha, Aryl Hydrocarbon Receptor, and Nuclear Factor Erythroid-2 Like 2 in Human Breast Cancer Cells by : Raymond Ho Fai Lo
Download or read book Activation of Estrogen Receptor Alpha, Aryl Hydrocarbon Receptor, and Nuclear Factor Erythroid-2 Like 2 in Human Breast Cancer Cells written by Raymond Ho Fai Lo and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Cross-modulatory Actions of Estrogen Receptor Beta on Estrogen Receptor Alpha Transcriptional Activity in Breast Cancer Cells by : Edmund Chi-Ru Chang
Download or read book Cross-modulatory Actions of Estrogen Receptor Beta on Estrogen Receptor Alpha Transcriptional Activity in Breast Cancer Cells written by Edmund Chi-Ru Chang and published by ProQuest. This book was released on 2007 with total page 105 pages. Available in PDF, EPUB and Kindle. Book excerpt: Our observations indicate that the ability of ERalpha and ERbeta to serve as determinants of gene expression is greatly influenced by the nature of the ligand, ligand dose, and the ability of ligand-ER complexes to recruit coregulators at ER binding sites of hormone-regulated genes.
Book Synopsis Cross-modulatory Actions of Cell Cycle Machinery on Estrogen Receptor-alpha Level and Transcriptional Activity in Breast Cancer Cells by : Shweta Bhatt
Download or read book Cross-modulatory Actions of Cell Cycle Machinery on Estrogen Receptor-alpha Level and Transcriptional Activity in Breast Cancer Cells written by Shweta Bhatt and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Handbook of Nutrition, Diet, and Epigenetics by : Vinood B. Patel
Download or read book Handbook of Nutrition, Diet, and Epigenetics written by Vinood B. Patel and published by Springer. This book was released on 2019-02-27 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This multivolume reference work addresses the fact that the well being of humankind is predicated not only on individuals receiving adequate nutrition but also on their genetic makeup. The work includes more than 100 chapters organized in the following major sections: Introduction and Overview; Epigenetics of Organs and Diseases in Relation to Diet and Nutrition; Detailed Processes in Epigenetics of Diet and Nutrition; Modulating Epigenetics with Diet and Nutrition; and Practical Techniques. While it is well known that genes may encode proteins responsible for structural and dynamic components, there is an increasing body of evidence to suggest that nutrition itself may alter the way in which genes are expressed via the process of epigenetics. This is where chemically imposed alteration in the DNA sequence occurs or where the functional expression of DNA is modulated. This may include changes in DNA methylation, non-coding RNA, chromatin, histone acetylation or methylation, and genomic imprinting. Knowledge regarding the number of dietary components that impact on epigenetic processes is increasing almost daily. Marshalling all the information on the complex relationships between diet, nutrition, and epigenetic processes is somewhat difficult due to the wide myriad of material. It is for this reason that the present work has been compiled.
Book Synopsis Introduction to Epigenetics by : Renato Paro
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
Book Synopsis Endocrine Therapy in Breast Cancer by : William R. Miller
Download or read book Endocrine Therapy in Breast Cancer written by William R. Miller and published by CRC Press. This book was released on 2002-03-08 with total page 395 pages. Available in PDF, EPUB and Kindle. Book excerpt: This reference evaluates and describes the latest strategies for hormone suppression and blockade in the management of early and advanced stage breast cancer and explores the effects of tamoxifen, selective estrogen receptor modulators (SERMs), aromatase inhibitors, and their combination on both breast cancers and normal tissues. Endocrine T
Book Synopsis Environmental Epigenetics by : L. Joseph Su
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.
Book Synopsis Advances in Cancer Treatment by : Iago Dillion Lima Cavalcanti
Download or read book Advances in Cancer Treatment written by Iago Dillion Lima Cavalcanti and published by Springer Nature. This book was released on 2021-02-24 with total page 109 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work covers the pathophysiology of cancer, exploring the difficulty of optimal treatment due to the complexity and diversity of cancer types. The search for distinctive molecular biology characteristics of tumor cells is especially relevant in the identification of overexpressed receptors and proteins that can be used as a target for cancer treatment. We highlight the main therapeutic modalities, particularly conventional systemic chemotherapy, addressing its mechanisms of action, therapeutic classes and even the toxic effects. We also describe the main tumor markers, their importance in the diagnosis and treatment of cancer, and the specificity of tumor cells. The first chapters serve as an introduction to the central topic of this book, targeted therapy. Key aspects of target therapy, such as classes of drugs, immunotherapy, monoclonal antibodies, checkpoint inhibitors, cancer vaccines and tyrosine kinase inhibitors are presented, and, for each one, the benefits, as well as the adverse effects are reported. Chapter 6 compares conventional systemic chemotherapy and targeted therapy, identifies the risks and benefits and also the eligibility criteria for patient care. The possibility of targeted therapy replacing conventional chemotherapy is discussed while reviewing studies that demonstrate the benefits of combining both types of treatment. Finally, the introduction of pharmaceutical nanotechnology to improve antineoplastic agents is addressed in the last chapter and sets the direction for future research in cancer treatment. This is a valuable resource for many health professionals including physicians, pharmacists, nurses, researchers and students interested in the field of oncology.
Book Synopsis Hormone Action by : Bert W. O'Malley
Download or read book Hormone Action written by Bert W. O'Malley and published by . This book was released on 1974 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hormone assays; Hormone receptors; Evaluation of biological effects of hormones; Purification and synthesis of hormones.
Book Synopsis Breast Cancer Metastasis and Drug Resistance by : Aamir Ahmad
Download or read book Breast Cancer Metastasis and Drug Resistance written by Aamir Ahmad and published by Springer Nature. This book was released on 2019-08-27 with total page 427 pages. Available in PDF, EPUB and Kindle. Book excerpt: Resistance to therapies, both targeted and systemic, and metastases to distant organs are the underlying causes of breast cancer-associated mortality. The second edition of Breast Cancer Metastasis and Drug Resistance brings together some of the leading experts to comprehensively understand breast cancer: the factors that make it lethal, and current research and clinical progress. This volume covers the following core topics: basic understanding of breast cancer (statistics, epidemiology, racial disparity and heterogeneity), metastasis and drug resistance (bone metastasis, trastuzumab resistance, tamoxifen resistance and novel therapeutic targets, including non-coding RNAs, inflammatory cytokines, cancer stem cells, ubiquitin ligases, tumor microenvironment and signaling pathways such as TRAIL, JAK-STAT and mTOR) and recent developments in the field (epigenetic regulation, microRNAs-mediated regulation, novel therapies and the clinically relevant 3D models). Experts also discuss the advances in laboratory research along with their translational and clinical implications with an overarching goal to improve the diagnosis and prognosis, particularly that of breast cancer patients with advanced disease.
Book Synopsis Breast Cancer Biology by : Dil Afroze
Download or read book Breast Cancer Biology written by Dil Afroze and published by BoD – Books on Demand. This book was released on 2020-07-08 with total page 127 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book offers a comprehensive overview of recent developments in the field of breast cancer biology. It is a complete and descriptive reference on motioning pathways and new treatment options for the future transnational scientists and clinicians working on cancer research and treatment. We greatly appreciate the work of all the contributors to this book. They have brought with them tremendous diversity of perspectives and fields, which is truly reflective of the complexity of the topic, and they have come together in this project to serve as the node of multidisciplinary collaboration in this field. Finally, we must acknowledge the thousands of cancer patients who have participated in the studies, and who have inspired us to gather information to significantly progress knowledge in the field in recent years.
Book Synopsis Epigenetics of Aging by : Trygve O. Tollefsbol
Download or read book Epigenetics of Aging written by Trygve O. Tollefsbol and published by Springer Science & Business Media. This book was released on 2009-11-11 with total page 462 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent studies have indicated that epigenetic processes may play a major role in both cellular and organismal aging. These epigenetic processes include not only DNA methylation and histone modifications, but also extend to many other epigenetic mediators such as the polycomb group proteins, chromosomal position effects, and noncoding RNA. The topics of this book range from fundamental changes in DNA methylation in aging to the most recent research on intervention into epigenetic modifications to modulate the aging process. The major topics of epigenetics and aging covered in this book are: 1) DNA methylation and histone modifications in aging; 2) Other epigenetic processes and aging; 3) Impact of epigenetics on aging; 4) Epigenetics of age-related diseases; 5) Epigenetic interventions and aging: and 6) Future directions in epigenetic aging research. The most studied of epigenetic processes, DNA methylation, has been associated with cellular aging and aging of organisms for many years. It is now apparent that both global and gene-specific alterations occur not only in DNA methylation during aging, but also in several histone alterations. Many epigenetic alterations can have an impact on aging processes such as stem cell aging, control of telomerase, modifications of telomeres, and epigenetic drift can impact the aging process as evident in the recent studies of aging monozygotic twins. Numerous age-related diseases are affected by epigenetic mechanisms. For example, recent studies have shown that DNA methylation is altered in Alzheimer’s disease and autoimmunity. Other prevalent diseases that have been associated with age-related epigenetic changes include cancer and diabetes. Paternal age and epigenetic changes appear to have an effect on schizophrenia and epigenetic silencing has been associated with several of the progeroid syndromes of premature aging. Moreover, the impact of dietary or drug intervention into epigenetic processes as they affect normal aging or age-related diseases is becoming increasingly feasible.
![Download Reactivation of Estrogen Receptor-[alpha] (ER[alpha] by Bioactive Dietary Compounds Through Epigenetic Mechanisms in ER[alpha]-negative Breast Cancer Cells PDF Online Free](https://books.google.com/books/content/images/frontcover/KbxunQAACAAJ?fife=w200-h370)
