Download or read book Investigating the Role of Akt1 in Prostate Cancer Development Through Phosphorylation Dependent Regulation of Skp2 Stability and Oncogenic Function written by and published by . This book was released on 2010 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: Elevated Skp2 expression is frequently observed in many tumors including breast and prostate carcinomas. However, the molecular mechanisms underlying elevated Skp2 expression in prostate cancers have not been fully explored. Hyperactivation of the Akt pathway is considered a hallmark of many cancers and it has been reported that activation of the PI3K/Akt pathway enhances p27 destruction. Thus, we hypothesize that sustained Akt activity in prostate cancer cells leads to elevated phosphorylation of Skp2, and subsequently influences Skp2 stability and its oncogenic functions. In support of our hypothesis, we found that Skp2 abundance is affected by manipulation of the PTEN/PI3K/Akt pathway in the PC3 and LNCaP prostate cancer cell lines. Furthermore, we showed that this is partially through phosphorylation of Skp2 by Akt, which impairs Skp2 destruction by Cdh1. Sequence analysis revealed that the Akt phosphorylation site (Ser72) is localized in a putative Nuclear Localization Sequence (NLS). Consistent with this notion, we found that overexpression of Myr-Akt promoted Skp2 cytoplasmic translocation, and that inhibition of PI3K/Akt activity enhanced its nuclear localization. We believe that these studies will provide a novel mechanism for Skp2 overexpression in prostate cancers and provide the rationale for developing Akt1-specific inhibitors to treat prostate cancer patients.
Download or read book Metabolism in Cancer written by Thorsten Cramer and published by Springer. This book was released on 2016-08-24 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: This textbook presents concise chapters written by internationally respected experts on various important aspects of cancer-associated metabolism, offering a comprehensive overview of the central features of this exciting research field. The discovery that tumor cells display characteristic alterations of metabolic pathways has significantly changed our understanding of cancer: while the first description of tumor-specific changes in cellular energetics was published more than 90 years ago, the causal significance of this observation for the pathogenesis of cancer was only discovered in the post-genome era. The first 10 years of the twenty-first century were characterized by rapid advances in our grasp of the functional role of cancer-specific metabolism as well as the underlying molecular pathways. Various unanticipated interrelations between metabolic alterations and cancer-driving pathways were identified and currently await translation into diagnostic and therapeutic applications. Yet the speed, quantity, and complexity of these new discoveries make it difficult for researchers to keep up to date with the latest developments, an issue this book helps to remedy.
Download or read book Intracellular Signaling Mediators in the Circulatory and Ventilatory Systems written by Marc Thiriet and published by Springer Science & Business Media. This book was released on 2012-09-26 with total page 1073 pages. Available in PDF, EPUB and Kindle. Book excerpt: The volumes in this authoritative series present a multidisciplinary approach to modeling and simulation of flows in the cardiovascular and ventilatory systems, especially multiscale modeling and coupled simulations. The cardiovascular and respiratory systems are tightly coupled, as their primary function is to supply oxygen to and remove carbon dioxide from the body's cells. Because physiological conduits have deformable and reactive walls, macroscopic flow behavior and prediction must be coupled to phenomenological models of nano- and microscopic events in a corrector scheme of regulated mechanisms when the vessel lumen caliber varies markedly. Therefore, investigation of flows of blood and air in physiological conduits requires an understanding of the biology, chemistry, and physics of these systems together with the mathematical tools to describe their functioning. Volume 4 is devoted to major sets of intracellular mediators that transmit signals upon stimulation of cell-surface receptors. Activation of signaling effectors triggers the release of substances stored in cellular organelles and/or gene transcription and protein synthesis. Complex stages of cell signaling can be studied using proper mathematical models, once the role of each component is carefully handled. Volume 4 also reviews various categories of cytosolic and/or nuclear mediators and illustrates some major signal transduction pathways, such as NFkappaB axis, oxygen sensing, and mechanotransduction.
Download or read book Autophagy in tumor and tumor microenvironment written by Sujit Kumar Bhutia and published by Springer Nature. This book was released on 2020-10-24 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book deals with the paradoxical role of autophagy in tumor suppression and tumor promotion in cancer cells. Autophagy plays opposing, context-dependent roles in tumors; accordingly, strategies based on inhibiting or stimulating autophagy could offer as potential cancer therapies. The book elucidates the physiological role of autophagy in modulating cancer metastasis, which is the primary cause of cancer-associated mortality. Further, it reviews its role in the differentiation, development, and activation of multiple immune cells, and its potential applications in tumor immunotherapy. In addition, it examines the effect of epigenetic modifications of autophagy-associated genes in regulating tumor growth and therapeutic response and summarizes autophagy’s role in the development of resistance to a variety of anti-cancer drugs in cancer cells. In closing, it assesses autophagy as a potential therapeutic target for cancer treatment. Given its scope, the book offers a valuable asset for all oncologists and researchers who wish to understand the potential role of autophagy in tumor biology.
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 Human Polyomaviruses written by Ugo Moens and published by Nova Science Pub Incorporated. This book was released on 2009 with total page 95 pages. Available in PDF, EPUB and Kindle. Book excerpt: Human polyomaviruses are non-enveloped viruses with a circular double-stranded DNA genome of approximately 5,000 base pairs. The members BK virus and JC virus were first isolated in 1971 and are very common in the human population. Simian virus 40 (SV40), although originally isolated from rhesus macaques and accidentally introduced in the human population during massive poliovirus vaccination, may represent a third member of the polyomaviruses that can have man as a natural host. Primary infection with BK or/and JC virus occurs during early childhood. Subsequently, these viruses establish a seemingly life-long harmless latent infection. However, virus reactivation can occur especially in immunocompromised individuals and JC virus has been recognised as the cause of progressive multifocal leukoencephalopathy, while BK virus-associated interstitial nephritis has become an emerging complication in renal transplant patients. The genomes of human polyomaviruses encode two functional classes of proteins: the regulatory proteins large T-antigen, small t-antigen, and agnoprotein, and the structural proteins VP1, VP2 and VP3 that form the capsid. The regulatory proteins can modulate the expression and/or activity of cellular proteins involved in signal transduction, cell cycle regulation, and chromosomal functions. Therefore, they all possess oncogenic potential. Consistent with this, human polyomaviruses are capable of transforming human cells and inducing tumours in rodents, and are implicated in human malignancies. This book focuses on the etiological role of human polyomaviruses in cancer and highlights the mechanisms by which the viral regulatory proteins may contribute to neoplastic transformation of the infected host cells. Possible therapeutic strategies against these viruses will also be discussed.
Download or read book Molecular Oncology of Breast Cancer written by Jeffrey Stuart Ross and published by Jones & Bartlett Learning. This book was released on 2005 with total page 642 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first comprehensive reference to focus on the molecular development and treatment of the disease, Molecular Oncology of Breast Cancer provides authoritative information across the spectrum of modern breast cancer research and clinical care. Edited by two world-class experts in cancer pathology, drug development, and patient management, with contributions from over 50 experts, this ground-breaking text describes the genes, proteins, and biologic pathways that are being evaluated today and will be tested in the future to derive the molecular signature of each newly diagnosed breast cancer. For the first time, readers can now obtain, in a single volume, up-to-date information on how molecular-based tests are being used to identify predisposition, provide earliest detection, decide classification based on genetic fingerprint and predict therapy-specific outcomes. MOBC includes unique chapters on functional imaging and the impact of targeted therapies on the FDA approval process. This book gives readers vital, up-to-date information on important molecular discoveries that affect the everyday management of the breast cancer patient.
Download or read book Toxicoepigenetics written by Shaun D. McCullough and published by Academic Press. This book was released on 2018-11-02 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt: Toxicoepigenetics: Core Principles and Applications examines the core aspects of epigenetics, including chromatin biology, DNA methylation, and non-coding RNA, as well as fundamental techniques and considerations for studying each of these mechanisms of epigenetic regulation. Although its integration into the field of toxicology is in its infancy, epigenetics have taken center stage in the study of diseases such as cancer, diabetes, and neurodegeneration. Increasing the presence of epigenetics in toxicological research allows for a more in-depth understanding of important aspects of toxicology such as the role of the environment and lifestyle influencing the individual susceptibility to these effects and the trans-generational transmission of these health effects and susceptibilities. Methods chapters are included to help improve efficacy and efficiency of protocols in both the laboratory and the classroom. Toxicoepigenetics: Core Principles and Applications is an essential book for researchers and academics using epigenetics in toxicology research and study. Introduces the fundamental principles and practices for understanding the role of the epigenome in toxicology Presents the foundation of epigenetics for toxicologists with a broad range of backgrounds Discusses the incorporation of epigenetics and epigenomics into current toxicological studies and interpretation of epigenetic data in toxicological applications
Download or read book Gaseous Molecular Ions written by Eugen Illenberger and published by Springer Science & Business Media. This book was released on 1992-05-26 with total page 944 pages. Available in PDF, EPUB and Kindle. Book excerpt: Most of the matter in our solar system, and, probably, within the whole universe, exists in the form of ionized particles. On the other hand, in our natural environ ment, gaseous matter generally consists of neutral atoms and molecules. Only under certain conditions, such as within the path oflightning or in several technical devices (e. g. gas discharges, rocket engines, etc. ) will some of the atoms and molecules be ionized. It is also believed that the chemistry of the earth's troposphere predomi nantly proceeds via reactions between neutral particles. (The complex system of atmospheric chemistry will be treated in one of the forthcoming volumes to this series. ) Why, then, are ions considered so important that hundreds oflaboratories all over the world (including some of the most prestigious) are involved in research pro grams on ions, covering many different facets, from biochemistry to physics? One may obtain as many different answers as there are research groups busy in this field. There is, however, one simple, common feature which makes it attractive to work with ions: since they carry one or more net elementary charges, they can easily be gui ded, focused or separated by appropriate electric and magnetic fields, and, last but not least, they can easily be detected. Apart from these advantages, which are welcome and appreciated by the researcher, the study of molecular ions can provide insight into very fundamental aspects of the general behavior of molecules.
Download or read book Principles of Cancer Genetics written by Fred Bunz and published by Springer. This book was released on 2016-03-01 with total page 354 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the second edition of a widely used textbook that consolidates the basic concepts of the cancer gene theory and provides a framework for understanding the genetic basis of cancer. Particular attention is devoted to the origins of the mutations that cause cancer, and the application of evolutionary theory to explain how the cell clones that harbor cancer genes tend to expand. Focused on the altered genes and pathways that cause the growth of the most common tumors, Principles of Cancer Genetics is aimed at advanced undergraduates who have completed introductory coursework in genetics, biology and biochemistry, medical students and medical house staff. For students with a general interest in cancer, this book provides a highly accessible and readable overview. For more advanced students contemplating future study in the field of oncology and cancer research, this concise book will be useful as a primer.
Download or read book Cell Cycle Regulation written by Philipp Kaldis and published by Results and Problems in Cell Differentiation. This book was released on 2006-06-26 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a state-of-the-art summary of the latest achievements in cell cycle control research with an outlook on the effect of these findings on cancer research. The chapters are written by internationally leading experts in the field. They provide an updated view on how the cell cycle is regulated in vivo, and about the involvement of cell cycle regulators in cancer.
Download or read book Prostate Cancer written by Donald J. Tindall and published by Springer Science & Business Media. This book was released on 2013-05-09 with total page 575 pages. Available in PDF, EPUB and Kindle. Book excerpt: Prostate Cancer provides an up-to-date review of the biochemistry, molecular biology, and genetic changes in prostate cells that are the driving forces in the initiation and progression of cancer. It includes an overview by experts in the field of cell-cell interactions, including stem cells, reactive Stromal cells and membrane lipid rafts that are instrumental in the initiation and progression of prostate cancer.
Download or read book Oxford Textbook of Cancer Biology written by Francesco Pezzella and published by Oxford University Press. This book was released on 2019-05-02 with total page 505 pages. Available in PDF, EPUB and Kindle. Book excerpt: The study of the biology of tumours has grown to become markedly interdisciplinary, involving chemists, statisticians, epidemiologists, mathematicians, bioinformaticians, and computer scientists alongside biologists, geneticists, and clinicians. The Oxford Textbook of Cancer Biology brings together the most up-to-date developments from different branches of research into one coherent volume, providing a comprehensive and current account of this rapidly evolving field. Structured in eight sections, the book starts with a review of the development and biology of multi-cellular organisms, how they maintain a healthy homeostasis in an individual, and a description of the molecular basis of cancer development. The book then illustrates, as once cells become neoplastic, their signalling network is altered and pathological behaviour follows. It explores the changes that cancer cells can induce in nearby normal tissue, the new relationship established between them and the stroma, and the interaction between the immune system and tumour growth. The authors illustrate the contribution provided by high throughput techniques to map cancer at different levels, from genomic sequencing to cellular metabolic functions, and how information technology, with its vast amounts of data, is integrated with traditional cell biology to provide a global view of the disease. The effect of the different types of treatments on the biology of the neoplastic cells are explored to understand on the one side, why some treatments succeed, and on the other, how they can affect the biology of resistant and recurrent disease. The book concludes by summarizing what we know to date about cancer, and in what direction our understanding of cancer is moving. Edited by leading authorities in the field with an international team of contributors, this book is an essential resource for scholars and professionals working in the wide variety of sub-disciplines that make up today's cancer research and treatment community. It is written not only for consultation, but also for easy cover-to-cover reading.
Download or read book Systems Cancer Biology written by Bor-Sen Chen and published by Cambridge Scholars Publishing. This book was released on 2021-07-13 with total page 632 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cancer is a complex and heterogeneous (systematic) disease that exhibits high levels of robustness against various therapeutic interventions. Due to the complex, heterogeneous, and evolving nature of cancer, it is essential for a system-oriented view to be adopted in order to understand the pathogenic mechanism of cancer which will eventually lead to the drug discovery and treatment of patients. This book not only provides new insights from system modeling and large scale experimental data, but also will allow the reader to perceive the systematic characteristics of cancer under some micro-environments. Based on the systems biology method and genome-wide high throughput data, the book presents the PPI network, gene regulatory network and epigenetic network as an integrated genetic and epigenetic cellular network of lung cancer, bladder cancer, thyroid cancer, colorectal cancer, and liver cancer to investigate their core signaling pathways of the carcinogenesis process to identify their corresponding significant carcinogenic biomarkers as drug targets for systems drug discovery and design. Consequently, the book presents the design of a multiple-molecule drug that can target these biomarkers for the therapeutic treatment of cancer with fewer side effects.
Download or read book PI3K signalling written by Klaus Okkenhaug and published by Frontiers Media SA. This book was released on 2015-03-05 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt: The PI3Ks control many key functions in immune cells. PI3Ks phosphorylate PtdIns(4,5)P2 to yield PtdIns(3,4,5)P3. Initially, PI3K inhibitors such as Wortmannin, LY294002 and Rapamycin were used to establish a central role for Pi3K pathway in immune cells. Considerable progress in understanding the role of this pathway in cells of the immune system has been made in recent years, starting with analysis of various PI3K and Pten knockout mice and subsequently mTOR and Foxo knockout mice. Together, these experiments have revealed how PI3Ks control B cell and T cell development, T helper cell differentiation, regulatory T cell development and function, B cell and T cell trafficking, immunoglobulin class switching and much, much more. The PI3Kd inhibitor idelalisib has recently been approved for the treatment of B cell lymphoma. Clinical trials of other PI3K inhibitors in autoimmune and inflammatory diseases are also in progress. This is an opportune time to consider a Research Topic considering when what we have learned about the PI3K signalling module in lymphocyte biology and how this is making an impact on clinical immunology and haematology.
Download or read book Tumor Suppressor Par 4 written by Vivek M. Rangnekar and published by Springer. This book was released on 2022-01-09 with total page 323 pages. Available in PDF, EPUB and Kindle. Book excerpt: Par-4 is a tumor suppressor protein first discovered and identified in 1993 by Dr. Vivek Rangnekar’s laboratory in prostate cancer cells undergoing apoptosis. Par-4 (later also known as PAWR) is a naturally occurring tumor suppressor. Studies have indicated that Par-4 selectively induces apoptosis in cancer cells while leaving normal, healthy, cells unaffected. Mechanisms contributing to the cancer-selective action of Par-4 have been associated with protein kinase A activation of intracellular Par-4 in cancer cells or GRP78 expression primarily on the surface of cancer cells. Par-4 is downregulated, inactivated or mutated in diverse cancers. This first of two volumes will be the first on the market on the topic of Par-4, and will provide the opportunity for researchers to discuss the future direction of studies, broaden the scope of research, and contribute a more complete understanding of the molecule’s structural features, key functional domains, regulation and relevant basic and clinical/translational facets.
Download or read book Nuclear Receptors written by Mostafa Z. Badr and published by Springer Nature. This book was released on 2021-09-28 with total page 676 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nuclear receptors are ligand activated transcription factors that control numerous biological functions. Consequently, altering activity of these receptors is proposed, and indeed documented, to affect many physiological and pathological conditions in experimental animals and humans. Thus, nuclear receptors have become a major target in the effort to treat numerous diseases. This book will shed light on and emphasize intricate processes involved in designing as well as discovering physiological and pharmacological modulators of these important proteins. World-renowned scientists will share with the reader their professional expertise and extensive experience acquired through decades working with nuclear receptors. Chapters address the various means and consequences of modulating nuclear receptor activity will be presented and discussed. These modulators cover a wide span of moieties ranging from synthetic chemicals to natural products. In addition, the classification of these chemicals ranges from pan agonists to selective agonists and inverse agonists to antagonists. They also include proteolytic means to obliterate the receptor in the event that modulating its activity through canonical pharmacological agents becomes less effective and/or less desirable due to anticipated or experienced toxicities. Modulation of receptor activity may also take place in the absence of a ligand or through manipulating the structure of the receptor itself by controlling posttranslational events.
