PI3K signalling

PI3K signalling PDF Author: Klaus Okkenhaug
Publisher: Frontiers Media SA
ISBN: 2889194191
Category : Immunologic diseases. Allergy
Languages : en
Pages : 140

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Book Description
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.

Phosphoinositide 3-kinase Signalling Pathway: The Key To Cell Proliferation And Death

Phosphoinositide 3-kinase Signalling Pathway: The Key To Cell Proliferation And Death PDF Author: Lam Eric Wing-fai
Publisher: World Scientific Publishing Company
ISBN: 1911299204
Category : Science
Languages : en
Pages : 252

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Book Description
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

Encyclopedia of Cancer

Encyclopedia of Cancer PDF Author: Manfred Schwab
Publisher: Springer Science & Business Media
ISBN: 3540368477
Category : Medical
Languages : en
Pages : 3307

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Book Description
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.

Protein Tyrosine Phosphatases in Cancer

Protein Tyrosine Phosphatases in Cancer PDF Author: Benjamin G. Neel
Publisher: Springer
ISBN: 1493936492
Category : Medical
Languages : en
Pages : 362

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Book Description
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.

Phosphoinositide 3-kinase Signalling Pathway

Phosphoinositide 3-kinase Signalling Pathway PDF Author: Eric W.-F. Lam
Publisher:
ISBN: 9781860946264
Category : Science
Languages : en
Pages : 238

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Book Description
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.

Targeting Cellular Signalling Pathways in Lung Diseases

Targeting Cellular Signalling Pathways in Lung Diseases PDF Author: Kamal Dua
Publisher: Springer Nature
ISBN: 9813368276
Category : Medical
Languages : en
Pages : 926

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Book Description
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.

Signal Transduction in Cancer

Signal Transduction in Cancer PDF Author: David A. Frank
Publisher: Springer Science & Business Media
ISBN: 1402073402
Category : Medical
Languages : en
Pages : 358

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Book Description
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."

Exploring PI3K Signalling Dynamics in Pancreatic Cancer

Exploring PI3K Signalling Dynamics in Pancreatic Cancer PDF Author: Carmen Fernanda Ramos Delgado
Publisher:
ISBN:
Category :
Languages : en
Pages : 272

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Book Description
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. [...].

Prostate Cancer

Prostate Cancer PDF Author: Scott M. Dehm
Publisher: Springer Nature
ISBN: 303032656X
Category : Medical
Languages : en
Pages : 483

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Book Description
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.

The Liver

The Liver PDF Author: Irwin M. Arias
Publisher: John Wiley & Sons
ISBN: 1119436826
Category : Medical
Languages : en
Pages : 1156

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Book Description
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.