Download or read book Polyamine Metabolism in Disease and Polyamine Targeted Therapies written by Tracy Murray-Stewart and published by MDPI. This book was released on 2019-10-01 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt: Polyamines are ubiquitous polycations essential for all cellular life. The most common polyamines in eukaryotes, spermine, spermidine, and putrescine, exist in millimolar intracellular concentrations that are tightly regulated through biosynthesis, catabolism, and transport. Polyamines interact with, and regulate, negatively charged macromolecules, including nucleic acids, proteins, and ion channels. Accordingly, alterations in polyamine metabolism affect cellular proliferation and survival through changes in gene expression and transcription, translation, autophagy, oxidative stress, and apoptosis. Dysregulation of these multifaceted polyamine functions contribute to multiple disease processes, thus their metabolism and function have been targeted for preventive or therapeutic intervention. The correlation between elevated polyamine levels and cancer is well established, and ornithine decarboxylase, the rate-limiting biosynthetic enzyme in the production of putrescine, is a bona fide transcriptional target of the Myc oncogene. Furthermore, induced polyamine catabolism contributes to carcinogenesis that is associated with certain forms of chronic infection and/or inflammation through the production of reactive oxygen species. These and other characteristics specific to cancer cells have led to the development of polyamine-based agents and inhibitors aimed at exploiting the polyamine metabolic pathway for chemotherapeutic and chemopreventive benefit. In addition to cancer, polyamines are involved in the pathologies of neurodegenerative diseases including Alzheimer’s and Parkinson’s, parasitic and infectious diseases, wound healing, ischemia/reperfusion injuries, and certain age-related conditions, as polyamines are known to decrease with age. As in cancer, polyamine-based therapies for these conditions are an area of active investigation. With recent advances in immunotherapy, interest has increased regarding polyamine-associated modulation of immune responses, as well as potential immunoregulation of polyamine metabolism, the results of which could have relevance to multiple disease processes. The goal of this Special Issue of Medical Sciences is to present the most recent advances in polyamine research as it relates to health, disease, and/or therapy.
Download or read book Polyamine Metabolism in Disease and Polyamine Targeted Therapies written by Tracy Murray-Stewart and published by . This book was released on 2019 with total page 1 pages. Available in PDF, EPUB and Kindle. Book excerpt: Spermine, spermidine, and putrescine constitute the mammalian polyamines, abundant polycations with essential roles in critical cell functions. As such, intracellular polyamine concentrations are tightly regulated through biosynthesis, catabolism, and transport. The multifaceted effects of polyamine dysregulation have contributed to its role in multiple disease processes but have also implicated it as target for preventive or therapeutic intervention. The correlation between oncogene-mediated elevation of polyamine biosynthesis and cancer is well established, and induced polyamine catabolism contributes to carcinogenesis that is associated with certain forms of chronic infection and/or inflammation. In addition to cancer, polyamines are involved in the pathologies of neurodegenerative diseases, parasitic and infectious diseases, wound healing, ischemia/reperfusion injuries, and certain age-related conditions, as polyamines concentrations are reported to decrease with age. As in cancer, polyamine-based therapies for these conditions are an area of active investigation. With recent advances in immunotherapy, interest has increased regarding polyamine-associated modulation of immune responses as well as potential immunoregulation of polyamine metabolism, the results of which could have relevance to multiple disease processes. The goal of this Special Issue of Medical Sciences is to present the most recent advances in polyamine research as it relates to health, disease, and/or therapy.
Download or read book Polyamine Cell Signaling written by Jian-Ying Wang and published by Springer Science & Business Media. This book was released on 2007-11-19 with total page 486 pages. Available in PDF, EPUB and Kindle. Book excerpt: Polyamines are organic cations found in all eukaryotic cells and intimately involved in, and required for, distinct biological functions. An increasing body of evidence indicates that the regulation of cellular polyamines is a central convergence point for the multiple signaling pathways driving various cellular functions. Over the last decade, considerable progress has been made in und- standing the molecular functions of cellular polyamines. These significant findings provide a fundamental basis to not only define the exact role of polyamines in physiology, but also to develop new therapeutic approaches for cancers and other diseases. The major objective of this book is to provide a timely and long lasting guide for investigators in the fields of polyamines, physiology, pharmacology, and cancer research. It will provide a foundation based on research and address the potential for subsequent applications in clinical practice. Polyamine Cell Signaling: Physiology, Pharmacology, and Cancer Research is divided into four main parts: Part I: Polyamines in Signal Transduction of Cell Proliferation Part II: Polyamines in Cellular Signaling of Apoptosis, Carcinogenesis, and Cancer Therapy Part III: Polyamines in Cell Motility and Cell–Cell Interactions Part IV: Polyamine Homeostasis and Transport This book not only covers the current state-of-the-art findings relevant to cellular and molecular functions of polyamines, but also provides the underlying conceptual basis and knowledge regarding potential therapeutic targeting of polyamines and polyamine metabolism. These points are addressed by int- nationally recognized experts in their contributions to this book.
Download or read book Polyamine Drug Discovery written by Patrick M. Woster and published by Royal Society of Chemistry. This book was released on 2012 with total page 303 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the first comprehensive description of the discovery and therapeutic potential of polyamine drugs.
Download or read book Polyamines written by Tomonobu Kusano and published by Springer. This book was released on 2015-01-07 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers key topics in polyamine research from a range of organisms, including plants, mammals, and prokaryotes such as bacteria and archaea. The book provides an introduction to general concepts in the field of polyamine research, as well as more detailed information. With the availability of genome sequence data from a broad range of organisms, the evolution of the genes involved in polyamine metabolism is discussed. The mode of action of polyamines has been shown to be dependent on cation channels, and this mechanism is described in the book. The origin of polyamine transporters (from bacteria, yeasts, and plants) is described. The various effects of polyamines on growth and survival are also documented. The book details the mechanisms of polyamine homeostasis and the role of polyamine molecules as precursors of secondary metabolites such as plant alkaloids and toxins derived from spiders and wasps. The role of polyamines in longevity and disease is discussed. A link between polyamine contents and cancer progression is reported, as is the use of polyamine metabolites as diagnostic markers in the initial stages of cancer. Moreover, a novel approach that utilizes the polyamine pathway of a parasite as a drug target in African sleeping sickness is described. Therefore, this book is a valuable resource, both as a textbook for undergraduate and graduate students and also as a reference book for front-line polyamine researchers.
Download or read book Inhibition of Polyamine Metabolism written by Peter P. McCann and published by . This book was released on 1987 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: Inhibition of polyamine metabolism ...
Download or read book RSC Drug Discovery 17 written by Patrick Woster and published by . This book was released on 2011 with total page 303 pages. Available in PDF, EPUB and Kindle. Book excerpt: Polyamines are ubiquitous molecules that are involved in a number of important cellular processes. Aberrations in their function or metabolism play a role in diseases such as cancer and parasitic infection. A number of validated drug targets have been identified, including enzymes in the polyamine biosynthetic and catabolic pathways and the S-adenosylmethionine synthetic and salvage pathways. Polyamine Drug Discovery is the first comprehensive volume to cover all aspects of the design and development of potential therapeutics targeting polyamine metabolism. The book details research progress f.
Download or read book Polyamines written by Kazutomo Imahori and published by VSP. This book was released on 1985-12 with total page 548 pages. Available in PDF, EPUB and Kindle. Book excerpt: The significance of polyamines in cell proliferation and carcinogenesis has stimulated further research interest in their biochemistry and metabolism. These papers, which update the available literature on polyamines, are grouped into four main areas: the metabolism of polyamines; the effect of polyamines on cellular metabolism; inhibitors of polyamine metabolism and their clinical relevance; application to diagnosis and prognosis. The Proceedings include contributions from a wide range of research interests with special emphasis being placed on the clinical aspects of these compounds.
Download or read book The Physiology of Polyamines written by Uriel Bachrach and published by CRC Press. This book was released on 1989-03-31 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: The state of the art in the area of polyamines is presented in this useful, two-volume publication. Basic information describing the role of polyamines in the processes of growth and differentiation is given. Also included are data on the regulation of polyamine biosynthesis and metabolism and their interactions with nucleic acids. Several chapters are devoted to the role of polyamines in various aspects of plant biology, with a special emphasis on their participation in the response of plants to extreme environments. Special attention is given to the use of inhibitors of polyamine biosynthesis as potential antitumor and antiproliferative agents. Additionally, recent progress in the molecular biology and genetic engineering of genes coding for polyamine biosynthetic enzymes is described. Cancer researchers, biologists, geneticists, biochemists, physiologists, and clinicians will find this volume indispensible. Contents VOLUME II: POLYAMINES IN MICROBES. Polyamines and the Growth of Bacteria and Viruses. Polyamines in Thermophiles. Propylamine Transfer Reactions in Thermophilic Archaebacteria: Enzymological Aspects and Comparative Biochemistry. Microbial Mutants Deficient in Polyamine Synthesis. Regulation of the Putrescine Biosynthetic Genes (SpeA, speB, and speC) in Escherichia coli. Utilization of L-Arginine, L-Ornithine, Agmatine, and Putrescine as the Major Source of Nitrogen and Its Control in Escherichia coli. POLYAMINES AND PLANTS. Polyamines and Plant Response to Stress. Polyamines and Plant Growth and Development. Polyamines and Plant Hormones. Polyamines in Plant Mutants. POLYAMINES AND DISEASES. Polyamines in Health and Disease. Polyamine Metabolism and Neoplastic Growth: A Programmed Deregulation? Polyamines as Markers of Malignancy. Polyamines as Indicators of Disease Activity and Response to Therapy in Cancer Patients. Inhibitors of Polyamine Biosynthesis as Therapeutic Agents. Clinical Studies of a- Difluoromethylornithine and a-Interferon in Cancer Patients. Changes in Polyamine Metabolism in Tumor-Bearing Hosts with Total Parenteral Nutrition and Intravenous Infusion of a-Difluoromethylornithine. Index. c. 328 pp., 7x10, due February 1989, ISBN-0-8493-6809-X.
Download or read book Dual Delivery Systems Based on Polyamine Analog Benspm as Prodrug and Gene Delivery Vectors written by Yu Zhu and published by . This book was released on 2014 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt: Combination drug and gene therapy shows promise in cancer treatment. However, the success of such strategy requires careful selection of the therapeutic agents, as well as development of efficient delivery vectors. BENSpm (N1, N11-bisethylnorspermine), a polyamine analogue targeting the intracellular polyamine pathway, draws our special attention because of the following reasons: (1) polyamine pathway is frequently dysregulated in cancer; (2) BENSpm exhibits multiple functions to interfere with the polyamine pathway, such as to up-regulate polyamine metabolism enzymes and down-regulate polyamine biosynthesis enzymes. Therefore BENSpm depletes all natural polyamines and leads to apoptosis and cell growth inhibition in a wide range of cancers; (3) preclinical studies proved that BENSpm can act synergistically with various chemotherapy agents, making it a promising candidate in combination therapy; (4) multiple positive charges in BENSpm enable it as a suitable building block for cationic polymers, which can be further applied to gene delivery. In this dissertation, our goal was to design dual-function delivery vector based on BENSpm that can function as a gene delivery vector and, after intracellular degradation, as an active anticancer agent targeting dysregulated polyamine metabolism. We first demonstrated strong synergism between BENSpm and a potential therapeutic gene product TRAIL. Strong synergism was obtained in both estrogen-dependent MCF-7 breast cancer cells and triple-negative MDA-MB-231 breast cancer cells. Significant dose reduction of TRAIL in combination with BENSpm in MDA-MB-231 cells, together with the fact that BENSpm rendered MCF-7 cells more sensitive to TRAIL treatment verified our rationale of designing BENSpm-based delivery platform. This was expected to be beneficial for overcoming drug resistance in chemotherapy, as well as boosting the therapeutic effect of therapeutic genes.
Download or read book DNA Methylation and Complex Human Disease written by Michel Neidhart and published by Academic Press. This book was released on 2015-08-11 with total page 546 pages. Available in PDF, EPUB and Kindle. Book excerpt: DNA Methylation and Complex Human Disease reviews the possibilities of methyl-group-based epigenetic biomarkers of major diseases, tailored epigenetic therapies, and the future uses of high-throughput methylome technologies. This volume includes many pertinent advances in disease-bearing research, including obesity, type II diabetes, schizophrenia, and autoimmunity. DNA methylation is also discussed as a plasma and serum test for non-invasive screening, diagnostic and prognostic tests, as compared to biopsy-driven gene expression analysis, factors which have led to the use of DNA methylation as a potential tool for determining cancer risk, and diagnosis between benign and malignant disease. Therapies are at the heart of this volume and the possibilities of DNA demethylation. In cancer, unlike genetic mutations, DNA methylation and histone modifications are reversible and thus have shown great potential in the race for effective treatments. In addition, the authors present the importance of high-throughput methylome analysis, not only in cancer, but also in non-neoplastic diseases such as rheumatoid arthritis. - Discusses breaking biomarker research in major disease families of current health concern and research interest, including obesity, type II diabetes, schizophrenia, and autoimmunity - Summarizes advances not only relevant to cancer, but also in non-neoplastic disease, currently an emerging field - Describes wholly new concepts, including the linking of metabolic pathways with epigenetics - Provides translational researchers with the knowledge of both basic research and clinic applications of DNA methylation in human diseases
Download or read book Polyamines written by Anthony E. Pegg and published by Humana Press. This book was released on 2011-02-21 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recently, important new findings in the polyamine field and a variety of new experimental systems have revolutionized the study of these ubiquitous cellular components, essential for normal growth and development. In Polyamines: Methods and Protocols, leading researchers contribute an extensive collection of up-to-date laboratory techniques for the further pursuit of polyamine study. The volume delves into vital subjects such as neoplasia studies with animal models and human patients, therapeutic roles for polyamine inhibitors and analogs, polyamine metabolism and oxidative damage, polyamines as regulators of critical ion channels, as well as polyamine transport systems and polyamine-responsive genes. Written in the highly successful Methods in Molecular BiologyTM series format, chapters include introductions to their respective topics, lists of the necessary materials and reagents, step-by-step, readily reproducible laboratory protocols, and expert notes on troubleshooting and avoiding known pitfalls. Comprehensive and cutting-edge, Polyamines: Methods and Protocols provides a key resource for all scientists pursuing the study of this dynamic and significant aspect of cellular biology.
Download or read book Polyamines in Normal and Neoplastic Growth written by Diane H. Russell and published by . This book was released on 1973 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Biomaterials for Cancer Therapeutics written by Kinam Park and published by Elsevier. This book was released on 2013-11-23 with total page 543 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cancer can affect people of all ages, and approximately one in three people are estimated to be diagnosed with cancer during their lifetime. Extensive research is being undertaken by many different institutions to explore potential new therapeutics, and biomaterials technology is now being developed to target, treat and prevent cancer. This unique book discusses the role and potential of biomaterials in treating this prevalent disease.The first part of the book discusses the fundamentals of biomaterials for cancer therapeutics. Chapters in part two discuss synthetic vaccines, proteins and polymers for cancer therapeutics. Part three focusses on theranosis and drug delivery systems, whilst the final set of chapters look at biomaterial therapies and cancer cell interaction.This extensive book provides a complete overview of the latest research into the potential of biomaterials for the diagnosis, therapy and prevention of cancer. Biomaterials for cancer therapeutics is an essential text for academics, scientists and researchers within the biomedical industry, and will also be of interest to clinicians with a research interest in cancer therapies and biomaterials. - A complete overview of the latest research into the potential of biomaterials for the diagnosis, therapy and prevention of cancer - Discusses the fundamentals of biomaterials for cancer therapeutics - Discusses synthetic vaccines, proteins and polymers for cancer therapeutics
Download or read book Encyclopedia of Malaria written by and published by Springer. This book was released on 2018-07-12 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Encyclopedia of Malaria represents a vast databank of information about the study of malaria. It provides an overview of the historical, rapid and significant developments that have occurred in malaria research, including the 2002 genome sequencing of Plasmodium falciparum and its mosquito vector, Anopheles gambiae. This work provides a concise source of up-to-date research findings in the form of definitions and essays and present comprehensive coverage of topics from history to findings to diagnosis and treatment, written by recognized malaria researchers with practical experience. It appeals to a diverse audience, including malaria researchers, teachers, investigators and public health professionals.
Download or read book Polyamines in the Gastrointestinal Tract written by R. Hermon Dowling and published by Kluwer Academic Pub. This book was released on 1992-01-01 with total page 538 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is widely accepted that polyamines play an essential role in cell proliferation, and scientific and clinical interest in these substances is increasing. This volume summarizes the various biochemical, molecular biological, pathophysiological and clinical aspects of actual research with regard to the role and importance of polyamine metabolism in functional and proliferative processes of the gastrointestinal tract. Besides extensive overview lectures from leading scientists, the actual research topics of nearly all groups world-wide are presented. One main goal is to achieve a close cooperation and exchange of knowledge between fundamental scientists and clinicians. In this respect this book provides a summary and overview of the scientific and clinical research, as well as an update of and future perspectives for research into the role and function of polyamines in the gastrointestinal tract.
Download or read book The Heterogeneity of Cancer Metabolism written by Anne Le and published by Springer. This book was released on 2018-06-26 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt: Genetic alterations in cancer, in addition to being the fundamental drivers of tumorigenesis, can give rise to a variety of metabolic adaptations that allow cancer cells to survive and proliferate in diverse tumor microenvironments. This metabolic flexibility is different from normal cellular metabolic processes and leads to heterogeneity in cancer metabolism within the same cancer type or even within the same tumor. In this book, we delve into the complexity and diversity of cancer metabolism, and highlight how understanding the heterogeneity of cancer metabolism is fundamental to the development of effective metabolism-based therapeutic strategies. Deciphering how cancer cells utilize various nutrient resources will enable clinicians and researchers to pair specific chemotherapeutic agents with patients who are most likely to respond with positive outcomes, allowing for more cost-effective and personalized cancer therapeutic strategies.
