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Pi3k Signalling
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Book Synopsis PI3K signalling by : Klaus Okkenhaug
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.
Book Synopsis Phosphoinositide 3-kinase Signalling Pathway: The Key To Cell Proliferation And Death by : Lam Eric Wing-fai
Download or read book Phosphoinositide 3-kinase Signalling Pathway: The Key To Cell Proliferation And Death written by Lam Eric Wing-fai and published by World Scientific Publishing Company. This book was released on 2006-06-08 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aimed at advanced undergraduates, postgraduates and researchers, this important textbook provides a detailed description of the structure and mechanisms of phosphoinositide 3-kinase (PI3Ks) signalling of all classes, with focus on the cellular context of PI3K activity, including its relevance to normal tissue and diseased states.This book contains a general review chapter detailing the mechanisms of cell proliferation and apoptosis, which are two of the main cellular targets of PI3K signalling. In addition, it provides a detailed description of the role of PI3K on the regulation of FOXO proteins, which are now becoming one of the most closely studied and important proteins in the regulation of cell death, cell proliferation and senescence./a
Book Synopsis Protein Tyrosine Phosphatases in Cancer by : Benjamin G. Neel
Download or read book Protein Tyrosine Phosphatases in Cancer written by Benjamin G. Neel and published by Springer. This book was released on 2016-08-05 with total page 362 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book aims to bridge the gap in understanding how protein-tyrosine phosphatases (PTPs), which carry out the reverse reaction of tyrosine phosphorylation, feature in cancer cell biology. The expertly authored chapters will first review the general features of the PTP superfamily, including their overall structure and enzymological properties; use selected examples of individual PTP superfamily members, to illustrate emerging data on the role of PTPs in cancer; and will review the current status of PTP-based drug development efforts. Protein Tyrosine Phosphatases in Cancer,from renowned researchers Benjamin Neel and Nicholas Tonks, is invaluable reading for researchers in oncology, stem cell signaling,and biochemistry.
Book Synopsis Encyclopedia of Cancer by : Manfred Schwab
Download or read book Encyclopedia of Cancer written by Manfred Schwab and published by Springer Science & Business Media. This book was released on 2008-09-23 with total page 3307 pages. Available in PDF, EPUB and Kindle. Book excerpt: This comprehensive encyclopedic reference provides rapid access to focused information on topics of cancer research for clinicians, research scientists and advanced students. Given the overwhelming success of the first edition, which appeared in 2001, and fast development in the different fields of cancer research, it has been decided to publish a second fully revised and expanded edition. With an A-Z format of over 7,000 entries, more than 1,000 contributing authors provide a complete reference to cancer. The merging of different basic and clinical scientific disciplines towards the common goal of fighting cancer makes such a comprehensive reference source all the more timely.
Book Synopsis Phosphoinositide 3-kinase Signalling Pathway by : Eric W.-F. Lam
Download or read book Phosphoinositide 3-kinase Signalling Pathway written by Eric W.-F. Lam and published by . This book was released on 2006 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aimed at advanced undergraduates, postgraduates and researchers, this important textbook provides a detailed description of the structure and mechanisms of phosphoinositide 3-kinase (PI3Ks) signalling of all classes, with focus on the cellular context of PI3K activity, including its relevance to normal tissue and diseased states. This book contains a general review chapter detailing the mechanisms of cell proliferation and apoptosis, which are two of the main cellular targets of PI3K signalling. In addition, it provides a detailed description of the role of PI3K on the regulation of FOXO proteins, which are now becoming one of the most closely studied and important proteins in the regulation of cell death, cell proliferation and senescence. Contents: Introduction (E W-F Lam); Cell Proliferation and Cell Death; In Vivo Roles of Cell Cycle and Apoptosis Regulators; The Role of Phosphoinositide 3-Kinase in Proliferation and Apoptosis (A Sunters & E W-F Lam); Phosphoinositide 3-Kinase Signalling Pathway; Class IA PI3K Enzymes; Class IB PI3K Enzymes; Class II PI3K Enzymes; Class III PI3K Enzymes; Expression of PI3K Enzymes; 3-Phosphoinositide Binding Domains; Downstream Targets of 3-Phosphoinositide; Manipulation of PI3K Enzyme Expression; Biological Role of PI3K Signalling Pathway; Phosphoinositide Phosphatases; The Role of the PI3K Pathway in Disease (J Domin); PI3K Signalling to Cell Survival and Proliferation; Molecules Directly Regulated by D3 Lipids; Genetic Studies of PI3K Function in Model Organisms; Molecules Downstream of PI3K and D3 Lipids; PI3K Regulation of Cell Survival; Signalling from PI3K to Cell Proliferation; Alterations of PI3K and Its Pathways in Cancer; Cancer Therapeutics (P Brennan); FOXO Transcription Factors; Forkhead Transcription Factors; FOXO Transcription Factors; Signalling to FOXO Proteins; Cellular Relocation Mechanism; FOXO Protein Processing; Transcriptional Activity of FoxO Proteins; Functions of FOXO in Vivo; FOXO Targets and Function; FOXO Proteins in Transformation and Diseases (S Fernandez de Mattos et al.). Key Features Provides a clear and well-organized review of PI3K signalling garnered from an exhaustive review of the available literature Readership: Undergraduates, postgraduates, academic researchers, clinicians and scientists working in industry.
Book Synopsis Targeting Cellular Signalling Pathways in Lung Diseases by : Kamal Dua
Download or read book Targeting Cellular Signalling Pathways in Lung Diseases written by Kamal Dua and published by Springer Nature. This book was released on 2021-07-02 with total page 926 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book comprehensively reviews and provides detailed insight into the cellular and molecular signalling mechanisms involved in pathophysiology of various respiratory diseases, towards developing effective therapeutic strategies in the management and treatment of lung disease. It also covers promising advances in the field of therapeutics that could lead to novel clinical therapies capable of preventing or reversing the disease features including novel strategies for targeting chronic lung diseases using advanced drug delivery systems. Importantly, the book examines the significance and relevance of the plant extracts and their constituents with therapeutic efficiencies against lung diseases. As such, the book offers a blend of translational, biological, chemical, and drug delivery aspects relevant to respiratory diseases, thus, offering a valuable resource for pulmonologists and translational researchers working in the field of pulmonary biology and respiratory medicine.
Book Synopsis Exploring PI3K Signalling Dynamics in Pancreatic Cancer by : Carmen Fernanda Ramos Delgado
Download or read book Exploring PI3K Signalling Dynamics in Pancreatic Cancer written by Carmen Fernanda Ramos Delgado and published by . This book was released on 2020 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: PI3Ks are enzymes that catalyse the phosphorylation of inositol phospholipids in the 3-position of the inositol ring. These substrates and products are involved in multiple cellular processes such as cell growth, proliferation, cell motility and cellular trafficking. In mammals, there are 8 isoforms of PI3Ks and they are grouped into three classes (class I, II and III) depending on their structure and substrate specificity. Class I PI3Ks are the best characterised and the most commonly implicated in cancer. Current evidence on the oncogenic roles of class II and class III PI3Ks is limited. The PI3K/Akt signalling pathway is frequently hyperactivated in cancers and is usually correlated to a poor prognosis, particularly in pancreatic ductal adenocarcinoma (PDAC). More than 90% of PDAC cases are driven by activating mutations in Kras, which then activate downstream effector-signalling pathways, including the PI3K pathway. PDAC is one of the most lethal cancers, characterised by a late-stage diagnosis, a rapid progression and limited therapeutic options. There is a dire need to find new biomarkers and to design novel therapeutics for PDAC management. Previous studies from the team demonstrated that PI3Kalpha, a class I PI3K, is crucial in the initial stages of PDAC. Nonetheless, its role during PDAC progression remains unknown. My PhD aims to elucidate PI3K signalling dynamics in PDAC. I focused on characterising the role of PI3Kalpha in PDAC progression and on determining its suitability as a therapeutic target. Additionally, I show preliminary data on the role of Vps34, a class III PI3K, in acinar cell physiology and its possible role in pancreatic carcinogenesis. The pharmacological and genetic inactivation of PI3Kalpha in vitro demonstrate that this PI3K isoform regulates parameters that drive pancreatic tumour cell progression regardless of oncogenic mutations. These effects are organ-specific; depending on the organ context, another class I PI3K isoform could drive the cancer progression. These results were then validated in vivo in the KPC mouse model used for preclinical testing of PDAC. KPC mice with high levels of cfDNA and a detected tumour via ultrasound imaging were treated with the PI3Kalpha-specific inhibitor, BYL-719. Likewise, I compared the pharmacological inhibition of PI3Kalpha with the genetic inactivation of PI3Kalpha in the pancreatic epithelium of KPC mice. Targeting PI3Kalpha in vivo, pharmacologically and genetically, decreases tumour volume, increases life expectancy and delays metastatic dissemination. To further support the anti-metastatic effect of PI3Kalpha, a tail vein assay was performed and the mice were also given BYL-719. This last experiment reproduced the previous results obtained with the other mouse models, reinforcing the role of PI3Kalpha in decreasing metastatic dissemination. Besides delaying metastatic dissemination, PI3Kalpha also decreased the infiltration of protumoral macrophages, suggesting a role for this isoform in shaping the immune response. [...].
Book Synopsis Signal Transduction in Cancer by : David A. Frank
Download or read book Signal Transduction in Cancer written by David A. Frank and published by Springer Science & Business Media. This book was released on 2002-12-31 with total page 358 pages. Available in PDF, EPUB and Kindle. Book excerpt: One of the most exciting areas of cancer research now is the development of agents which can target signal transduction pathways that are activated inappropriately in malignant cells. The understanding of the molecular abnormalities which distinguish malignant cells from their normal counterparts has grown tremendously. This volume summarizes the current research on the role that signal transduction pathways play in the pathogenesis of cancer and how this knowledge may be used to develop the next generation of more effective and less toxic anticancer agents. Series Editor comments: "The biologic behavior of both normal and cancer cells is determined by critical signal transduction pathways. This text provides a comprehensive review of the field. Leading investigators discuss key molecules that may prove to be important diagnostic and/or therapeutic targets."
Download or read book The Liver written by Irwin M. Arias and published by John Wiley & Sons. This book was released on 2020-03-09 with total page 1156 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bridging the gap between basic scientific advances and the understanding of liver disease — the extensively revised new edition of the premier text in the field. The latest edition of The Liver: Biology and Pathobiology remains a definitive volume in the field of hepatology, relating advances in biomedical sciences and engineering to understanding of liver structure, function, and disease pathology and treatment. Contributions from leading researchers examine the cell biology of the liver, the pathobiology of liver disease, the liver’s growth, regeneration, metabolic functions, and more. Now in its sixth edition, this classic text has been exhaustively revised to reflect new discoveries in biology and their influence on diagnosing, managing, and preventing liver disease. Seventy new chapters — including substantial original sections on liver cancer and groundbreaking advances that will have significant impact on hepatology — provide comprehensive, fully up-to-date coverage of both the current state and future direction of hepatology. Topics include liver RNA structure and function, gene editing, single-cell and single-molecule genomic analyses, the molecular biology of hepatitis, drug interactions and engineered drug design, and liver disease mechanisms and therapies. Edited by globally-recognized experts in the field, this authoritative volume: Relates molecular physiology to understanding disease pathology and treatment Links the science and pathology of the liver to practical clinical applications Features 16 new “Horizons” chapters that explore new and emerging science and technology Includes plentiful full-color illustrations and figures The Liver: Biology and Pathobiology, Sixth Edition is an indispensable resource for practicing and trainee hepatologists, gastroenterologists, hepatobiliary and liver transplant surgeons, and researchers and scientists in areas including hepatology, cell and molecular biology, virology, and drug metabolism.
Download or read book Prostate Cancer written by Scott M. Dehm and published by Springer Nature. This book was released on 2020-01-03 with total page 483 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this book is to provide a contemporary overview of the causes and consequences of prostate cancer from a cellular and genetic perspective. Written by experts in the fields of epidemiology, toxicology, cell biology, genetics, genomics, cell-cell interactions, cell signaling, hormone signaling, and transcriptional regulation, the text covers aspects of prostate cancer from disease initiation to metastasis. Chapters explore in depth the cells of origin for prostate cancer, its genomic subtypes, neural transcription factors in disease progression, epigenetic regulation of chromatin, and many other topics. This book distinguishes itself from other texts on prostate cancer by its focus on cellular and genetic mechanisms, as opposed to clinical diagnosis and management. As a result, this book will be of broad interest to basic and translational scientists with familiarity of these topics, as well as to trainees at earlier stages of their research careers.
Book Synopsis Phosphoinositide 3-kinase in Health and Disease by : Christian Rommel
Download or read book Phosphoinositide 3-kinase in Health and Disease written by Christian Rommel and published by Springer Science & Business Media. This book was released on 2010-10-17 with total page 311 pages. Available in PDF, EPUB and Kindle. Book excerpt: From humble beginnings over 25 years ago as a lipid kinase activity associated with certain oncoproteins, PI3K (phosphoinositide 3-kinase) has been catapulted to the forefront of drug development in cancer, immunity and thrombosis, with the first clinical trials of PI3K pathway inhibitors now in progress. Here we give a brief overview of some key discoveries in the PI3K area and their impact, and include thoughts on the current state of the field, and where it could go from here
Book Synopsis BMP2-induced PI3K Signalling in Directed Cell Migration by :
Download or read book BMP2-induced PI3K Signalling in Directed Cell Migration written by and published by . This book was released on 2013 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Insulin Signalling in Human Adipocytes and its Interplay with beta-Adrenergic Control of Lipolysis by : Cecilia Karlsson
Download or read book Insulin Signalling in Human Adipocytes and its Interplay with beta-Adrenergic Control of Lipolysis written by Cecilia Karlsson and published by Linköping University Electronic Press. This book was released on 2018-04-27 with total page 49 pages. Available in PDF, EPUB and Kindle. Book excerpt: The prevalence of obesity has over the last 40 years nearly tripled and obesity is one of the major risk factors of developing type 2 diabetes. Type 2 diabetes was formerly called adultonset diabetes but today, probably due to the rise in childhood obesity, it is also seen in children and adolescents. Type 2 diabetes is diagnosed when the body no longer can control the glucose levels in the blood. This is due to an insulin resistant state in the insulin responding tissues, liver, adipose and muscle and insufficient production of insulin in the pancreas. However, in spite of extensive research the mechanisms behind insulin resistance is still not known. The adipose tissue is believed to play a major role in the development of whole body insulin resistance. Adipocytes are the most important sites for storage of the high energy containing triacylglycerols. Insulin stimulation causes the adipocyte to increase the uptake of glucose and to reduce lipolysis: the hydrolysis of triacylglycerol and release of glycerol and fatty acids. The insulin signalling network is complex with numerous proteins involved. These signaling proteins not only transmit the insulin signal but also create negative and positive feedbackloops and induce cross talk between different parts of the network and with the signalling of other hormones. One important positive feedback in insulin signalling is the mTORC1 mediated feedback to phosphorylation of IRS1 at serine 307. In paper I we found that in human adipocytes this feedback is not likely catalysed by the assumed kinase S6K1. However we find an immunoprecipitate of mTOR to contain a ser307 phosphorylating kinase. Scaffolding proteins serve as docking sites for several proteins to promote protein-protein interactions that facilitate signal transduction. In paper II we demonstrate the existence of the scaffolding protein IQGAP1 in human adipocytes and that the expression of IQGAP1 is downregulated in type 2 diabetes. We reveal that IQGAP1 co-localises with caveolae, invaginations of the plasma membrane where the insulin receptor is situated, and that this interaction is increased upon insulin stimulation. In paper III we focus on the control of lipolysis, and sought to understand the interplay between insulin and beta-adrenergic stimulation. We demonstrated that the re-esterification of fatty acids is downregulated in type 2 diabetes causing an increased release of fatty acids from the cells. We showed that beta-adrenergic stimulation with isoproterenol induced a negative feedback via PKA/Epac1 -> PI3K -> PKB -> PDE3B that reduced the cAMP levels and thereby also reduced lipolysis. We also showed that insulin, in addition to its well-known anti-lipolytic effect, at high concentrations had a positive effect on lipolysis. In conclusion we reveal an intricate control of the stimulation as well as the inhibition of lipolysis induced by both isoproterenol and insulin.
Book Synopsis The Control Of Lipid Metabolism by : Biochemical Society Symposium
Download or read book The Control Of Lipid Metabolism written by Biochemical Society Symposium and published by Legare Street Press. This book was released on 2022-10-27 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work is in the "public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Book Synopsis Protein Modules in Cellular Signalling by : Ludwig Heilmeyer
Download or read book Protein Modules in Cellular Signalling written by Ludwig Heilmeyer and published by IOS Press. This book was released on 2001 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dynamic stability of cells is a function of co-ordination and counterbalance between intracellular signalling events. Therefore, the knowledge of those molecules which form signalling cascades or signalling modules is of prime importance in understanding living processes. Signalling proteins, the component members of different cascades, are the focus of intense interest. Protein phosphorylation dephosphorylation is the prevalent mechanism by which signalling molecules transduce their signals.
Book Synopsis Metabolism Meets Function: Untangling the Cross-Talk Between Signalling and Metabolism by : Alessandra Castegna
Download or read book Metabolism Meets Function: Untangling the Cross-Talk Between Signalling and Metabolism written by Alessandra Castegna and published by Frontiers Media SA. This book was released on 2020-12-18 with total page 231 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.
Book Synopsis Lipid Signalling in Plant Development and Responses to Environmental Stresses by : Eric Ruelland
Download or read book Lipid Signalling in Plant Development and Responses to Environmental Stresses written by Eric Ruelland and published by Frontiers Media SA. This book was released on 2016-08-09 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt: In response to environmental stresses, or during development, plant cells will produce lipids that will act as intracellular or intercellular mediators. Glycerophospholipid and/or sphingolipid second messengers resulting from the action of lipid metabolizing enzymes (e.g. lipid-kinases or lipases) are commonly found within cells. The importance of such mediating lipids in plants has become increasingly apparent. Responses to biotic and abiotic stresses, and to plant hormones, all appear to involve and require lipid signals. Likewise, developmental processes, in particular polarized growth, seem also to involve signalling lipids. Amongst these lipids, phosphatidic acid (PA) has received the most attention. It can be produced by phospholipases D, but also by diacylglycerol kinases coupled to phospholipases C. Proteins that bind phosphatidic acid, and for which the activity is altered upon binding, have been identified. Furthermore, other lipids are also important in signalling processes. PA can be phosphorylated into diacylglycerol-pyrophosphate, and plants are one of the first biological models where the production of this lipid has been reported, and its implication in signal transduction have been demonstrated. PA can also be deacylated into lyso- phosphatidic acid. The phosphorylated phosphatidylinositols, i.e. the phosphoinositides, can act as substrate of phospholipases C, but are also mediating lipids per se, since proteins that bind them have been identified. Other important lipid mediators belong to the sphingolipid family such the phosphorylated phytosphingosine, or long-chain bases. Many questions remain unanswered concerning lipid signalling in plants. Understanding and discussing current knowledge on these mechanisms will provide insights into plant mechanisms in response to constraints, either developmental or environmental.
