The Endothelium

The Endothelium PDF Author: Michel Félétou
Publisher: Morgan & Claypool Publishers
ISBN: 1615041230
Category : Science
Languages : en
Pages : 309

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Book Description
The endothelium, a monolayer of endothelial cells, constitutes the inner cellular lining of the blood vessels (arteries, veins and capillaries) and the lymphatic system, and therefore is in direct contact with the blood/lymph and the circulating cells. The endothelium is a major player in the control of blood fluidity, platelet aggregation and vascular tone, a major actor in the regulation of immunology, inflammation and angiogenesis, and an important metabolizing and an endocrine organ. Endothelial cells controls vascular tone, and thereby blood flow, by synthesizing and releasing relaxing and contracting factors such as nitric oxide, metabolites of arachidonic acid via the cyclooxygenases, lipoxygenases and cytochrome P450 pathways, various peptides (endothelin, urotensin, CNP, adrenomedullin, etc.), adenosine, purines, reactive oxygen species and so on. Additionally, endothelial ectoenzymes are required steps in the generation of vasoactive hormones such as angiotensin II. An endothelial dysfunction linked to an imbalance in the synthesis and/or the release of these various endothelial factors may explain the initiation of cardiovascular pathologies (from hypertension to atherosclerosis) or their development and perpetuation. Table of Contents: Introduction / Multiple Functions of the Endothelial Cells / Calcium Signaling in Vascular Cells and Cell-to-Cell Communications / Endothelium-Dependent Regulation of Vascular Tone / Conclusion / References

The Endothelium

The Endothelium PDF Author: Michel Félétou
Publisher: Morgan & Claypool Publishers
ISBN: 1615041230
Category : Science
Languages : en
Pages : 309

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Book Description
The endothelium, a monolayer of endothelial cells, constitutes the inner cellular lining of the blood vessels (arteries, veins and capillaries) and the lymphatic system, and therefore is in direct contact with the blood/lymph and the circulating cells. The endothelium is a major player in the control of blood fluidity, platelet aggregation and vascular tone, a major actor in the regulation of immunology, inflammation and angiogenesis, and an important metabolizing and an endocrine organ. Endothelial cells controls vascular tone, and thereby blood flow, by synthesizing and releasing relaxing and contracting factors such as nitric oxide, metabolites of arachidonic acid via the cyclooxygenases, lipoxygenases and cytochrome P450 pathways, various peptides (endothelin, urotensin, CNP, adrenomedullin, etc.), adenosine, purines, reactive oxygen species and so on. Additionally, endothelial ectoenzymes are required steps in the generation of vasoactive hormones such as angiotensin II. An endothelial dysfunction linked to an imbalance in the synthesis and/or the release of these various endothelial factors may explain the initiation of cardiovascular pathologies (from hypertension to atherosclerosis) or their development and perpetuation. Table of Contents: Introduction / Multiple Functions of the Endothelial Cells / Calcium Signaling in Vascular Cells and Cell-to-Cell Communications / Endothelium-Dependent Regulation of Vascular Tone / Conclusion / References

Intracellular Calcium Regulation

Intracellular Calcium Regulation PDF Author: Felix Bronner
Publisher: Wiley-Liss
ISBN:
Category : Medical
Languages : en
Pages : 504

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Book Description
Intracellular Calcium Regulation Editor Felix Bronner A notable development in biological research is the recent widespread interest in the role played by calcium in cellular metabolism. Calcium homeostasis has been studied intensively for many years and mechanisms by which calcium absorption, excretion and bone deposition are effected and regulated are beginning to be understood in detail. It now appears there may exist a parallel between the maintenance and regulation of intracellular and extracellular calcium. This volume presents up-to-date information on intracellular calcium regulation and thus provides a foundation for studies that aim to explore the relationship between intracellular and extracellular calcium metabolism. Intracellular Calcium Regulation examines in detail what happens to calcium inside the cell and offers authoritative discussions on such topics as: calcium fluxes: defining the role played by the plasma membrane in regulating the cellular calcium level, the application of tracer techniques to an analysis of the cellular calcium pool, the compartments making up the pool and the rates of exchange between compartments processes of calcium entry into the cell: describing entry into cells that do not fire action potentials, as well as three types of voltage-sensitive calcium channels, including their distribution, pharmacology, molecular properties and modulation organelles, such as the endoplasmic reticulum, the Golgi complex, lysosomes, or mitochondria and their role in regulating intracellular calcium levels the new, exciting field of calcium-binding or calcium modulated proteins, such as troponin-C, parvalbumin, S-100 proteins, calbindins, and calmodulin, as well as some novel calcium-binding proteins like the 42C and 42A proteins, calcyclin and caltractin calcium efflux: analyzing the role and function of the plasma membrane calcium pump and the Na+/Ca2+ exchanger, including the kinetics of ATP hydrolysis, how calcium transport and ATP hydrolysis are linked, the kinetics and properties of the sodium-calcium exchange, its regulation and role in such specialized cells as retinal rods and cardiac myocytes calcium transport as carried out by resting, stimulated and excitable cells with emphasis on activated phospholipase C, involvement of the G proteins and protein kinase C calcium transport as carried out by the specialized transport cells of intestine and kidney, entry via calcium channels, intracellular diffusion as facilitated by the calcium-binding proteins, and extrusion via the Ca-ATPase. Intracellular Calcium Regulation will be of interest to researchers and graduate students in the areas of biochemistry, biophysics, cell biology, nutrition, gastroenterology, nephrology and anatomy.

Intracellular Calcium Regulation

Intracellular Calcium Regulation PDF Author: Hermann Bader
Publisher: Manchester University Press
ISBN: 9780719018350
Category : Calcium
Languages : en
Pages : 504

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Book Description


Calcium Transport and Intracellular Calcium Homeostasis

Calcium Transport and Intracellular Calcium Homeostasis PDF Author: Danielle Pansu
Publisher: Springer Science & Business Media
ISBN: 3642839770
Category : Science
Languages : en
Pages : 435

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Book Description
The crucial role played by calcium as a cellular messenger has become increasingly evident, as has the recognition that cells spend much energy in maintaining the cytosolic concentration of this cation both constant and low. It is thought they do this to avoid precipitating phosphate, needed as a source of bond energy and to modulate protein structure. Moreover, since calcium that does enter the cell must be disposed with, processes that utilize calcium have evolved, e.g. secretion, contraction, signaling, to name just some. New knowledge concerning the processes of cellular calcium entry, extrusion and the fate of intracellular calcium has accumulated in recent years. Much has also been learned about calcium transport by and across epithelial cells. It seems logical to think that the processes of calcium entry, extrusion and intracellular handling are similar in all cells. We have therefore assembled in one volume overviews and research reports of transport and cellular calcium regulation so as to explore similarities and differences between cells that utilize calcium for metabolic purposes and those whose primary function is transport.

Calcium Entry Channels in Non-Excitable Cells

Calcium Entry Channels in Non-Excitable Cells PDF Author: Juliusz Ashot Kozak
Publisher: CRC Press
ISBN: 149875273X
Category : Science
Languages : en
Pages : 343

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Book Description
Calcium Entry Channels in Non-Excitable Cells focuses on methods of investigating the structure and function of non-voltage gated calcium channels. Each chapter presents important discoveries in calcium entry pathways, specifically dealing with the molecular identification of store-operated calcium channels which were reviewed by earlier volumes in the Methods in Signal Transduction series. Crystallographic and pharmacological approaches to the study of calcium channels of epithelial cells are also discussed. Calcium ion is a messenger in most cell types. Whereas voltage gated calcium channels have been studied extensively, the non-voltage gated calcium entry channel genes have only been identified relatively recently. The book will fill this important niche.

Signaling Mechanisms Regulating T Cell Diversity and Function

Signaling Mechanisms Regulating T Cell Diversity and Function PDF Author: Jonathan Soboloff
Publisher: CRC Press
ISBN: 149870509X
Category : Medical
Languages : en
Pages : 258

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Book Description
T cells play a vital role mediating adaptive immunity, a specific acquired resistance to an infectious agent produced by the introduction of an antigen. There are a variety of T cell types with different functions. They are called T cells, because they are derived from the thymus gland. This volume discusses how T cells are regulated through the operation of signaling mechanisms. Topics covered include positive and negative selection, early events in T cell receptor engagement, and various T cell subsets.

Calcium and Cell Function

Calcium and Cell Function PDF Author: Wai Yiu Cheung
Publisher:
ISBN:
Category : Medical
Languages : en
Pages : 536

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Book Description


Metallomics and the Cell

Metallomics and the Cell PDF Author: Lucia Banci
Publisher: Springer Science & Business Media
ISBN: 9400755619
Category : Science
Languages : en
Pages : 642

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Book Description
Metallomics and the Cell provides in an authoritative and timely manner in 16 stimulating chapters, written by 37 internationally recognized experts from 9 nations, and supported by more than 3000 references, several tables, and 110 illustrations, mostly in color, a most up-to-date view of the "metallomes" which, as defined in the "omics" world, describe the entire set of biomolecules that interact with or are affected by each metal ion. The most relevant tools for visualizing metal ions in the cell and the most suitable bioinformatic tools for browsing genomes to identify metal-binding proteins are also presented. Thus, MILS-12 is of relevance for structural and systems biology, inorganic biological chemistry, genetics, medicine, diagnostics, as well as teaching, etc.

Store-Operated Calcium Channels

Store-Operated Calcium Channels PDF Author:
Publisher: Academic Press
ISBN: 0124079385
Category : Science
Languages : en
Pages : 307

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Book Description
Store-operated calcium channels are found in most animal cells and regulate many cellular functions including cell division, growth, differentiation, and cell death. This volume provides a concise and informative overview of the principles of store-operated calcium entry and the key developments in the field from researchers who have led these advances. The overall goal of the volume is to provide interested students and investigators with sufficient information to enable a broad understanding of the progress and current excitement in the field. The volume contains a wealth of information that even experienced investigators in the field will find useful. The volume provides a comprehensive overview of the mechanisms and functions of store-operated calcium channels Contributors are authoritative researchers who have produced important advances in the field The volume is well-illustrated with cartoons and data to facilitate easy comprehension of the subject

Calcium and Calmodulin Function in the Cell Nucleus

Calcium and Calmodulin Function in the Cell Nucleus PDF Author: Oriol Bachs
Publisher: Springer Science & Business Media
ISBN: 3662216868
Category : Science
Languages : en
Pages : 173

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Book Description
This book is about the role of calcium and calmodulin in the cell nucleus. Calcium, which is an important second messenger of signal transduction pathways, can also operate in the cell nucleus. Different calcium binding proteins, which are the targets of cellular calcium, have been identified in the nucleus of many different cell types. Prominent among these calcium binding proteins is calmodulin, which appears to be involved in the regulation of major nuclear functions such as gene expression and DNA replication.