الصفحة 1
الصفحة 1
Neutrophil : Methods and Protocols
Neutrophils, the most abundant white cells in humans, serve as the primary cellular defense against infection. This volume provides a concise set of protocols for assessing basic neutrophil functions and investigating specialized areas in neutrophil biology. Each of the protocols is written by leading researchers in the field and includes hints for success, as well as guidance for troubleshooting. Part I contains overviews of neutrophil biology, function, and disorders. Part II describes commonly used methods to isolate neutrophils from humans and other animal species. Part III details methods for investigating chemotaxis, transmigration, phagocytosis, and bactericidal activity. Part IV includes protocols that measure neutrophil apoptosis, calcium signal transduction, degranulation and detection of cytoplasmic granules, gene expression, transcription factors, and apoptosis. Part V provides multiple assays for measuring production of intracellular and/or extracellular reactive oxygen species, and a method that details use of the cell-free NADPH oxidase assay, an iconic assay for studies of the neutrophil NADPH oxidase. Part VI provides chapters that describe how to analyze formation and function of neutrophil extracellular traps.
Molecular Parameters Indicating Adaptation to Mechanical Stress in Fibrous Connective Tissue
The present study pursues the hypothesis that local compressive force and the occurrence of cartilage-specific transformation processes within tendons and ligaments are directly correlated. In selected anatomical samples of human origin the distribution pattern of certain components of the extracellular matrix is assessed. Investigations are carried out at the extensor tendons of toes and fingers, at the transverse ligament of the atlas, at the transverse ligament of the acetabulum, and at the tendon of the superior oblique muscle and its trochlea. The molecular components of the extracellular matrix are detected with standardized immunohistochemical methods. The results show that certain molecules only occur due to compressive stress, others due to tensile stress. The molecular spectrum of the extracellular matrix allows qualifying conclusions to the mechanical situation of a given part of the tissue. The spatial expansion of the fibrocartilaginous adaptation zones in tendons and ligaments roughly corresponds with the zones subjected to compressive force; tensile stress alone does not result in a production of fibrocartilage.
Mechanosensing and Mechanochemical Transduction in Extracellular Matrix : Biological, Chemical, Engineering, and Physiological Aspects
Mechanosensing and Mechanochemical Transduction in Extracellular Matrix offers the reader recent information in addition to models of how mechanical information is transduced into genetic and biochemical changes at the cellular and tissue levels. Mechanosensing and Mechanochemical Transduction in Extracellular Matrix is intended to serve as a textbook at the graduate and advanced undergraduate level in a biomedical engineering curriculum.
Mechanisms of mineralization of vertebrate skeletal and dental tissues
Presents a multi-disciplinary approach to understanding mechanisms regulating the formation of mineral in vertebrate skeletal and dental tissues. The focus of the book is directed toward the mineralization process, an evolutionarily conserved system in which cells synthesize a complex and unique extracellular matrix into which mineral is deposited. Regulatory control is viewed though lenses that emphasize the genetic, physical-chemical, biochemical, structural, cellular and extracellular aspects of the mineralization process as they relate to crystal nucleation, growth and maturation. Throughout the book, defects in regulation at the genetic and transcriptional levels are linked to the numerous clinical problems associated with the mineralization of bone, cartilage, tendon, tooth, and soft tissues.
Interstitial fibrosis in heart failure
Interstitial Fibrosis in Heart Failure, edited by Francisco J. Villarreal, M.D., Ph.D., provides a timely and integrative review of the basics of cardiac extracellular matrix structure. Topics covered include how cardiac remodeling influences its disposition, abundance and function; possible non-invasive techniques for diagnosis; and potential drug-based or molecular therapeutic strategies that may interrupt or even reverse the course of the development of cardiac fibrosis. This resource for both clinicians and scientists aims to cover state-of-the-art findings relevant to cellular and molecular processes underlying cardiac fibrosis including basic elements of structure, function, diagnosis and treatment.
Heart block
Cardiac muscle (also called heart muscle or myocardium) is one of three types of vertebrate muscle tissue, with the other two being skeletal muscle and smooth muscle. It is involuntary, striated muscle that constitutes the main tissue of the wall of the heart. The cardiac muscle (myocardium) forms a thick middle layer between the outer layer of the heart wall (the pericardium) and the inner layer (the endocardium), with blood supplied via the coronary circulation. It is composed of individual cardiac muscle cells joined together by intercalated discs, and encased by collagen fibers and other substances that form the extracellular matrix.
Facial wirkles and treating strategies
Skin is a complex organ covering the entire surface of the body. Skin aging is characterized by features such as wrinkling, loss of elasticity, laxity, and rough- textured appearance. This aging process is accompanied with phenotypic changes in cutaneous cells as well as structural and functional changes in extracellular matrix components such as collagens and elastin. These changes occur under the influence of intrinsic and extrinsic factors, Skin changes associated with aging are the focus of many surgical and nonsurgical procedures aimed to improve the appearance of skin...
Diverse Roles of Integrin Receptors in Articular Cartilage
Recent studies from the authors' laboratory and from other leading groups have shown that ß1-integrins are essential for cell signalling and communication in chondrocytes. Furthermore, ß1-integrins function as mechanoreceptors in the chondrocyte mechanotransduction pathway. Their expression is therefore essential for maintaining the chondrocyte phenotype, preventing chondrocyte apoptosis and regulating chondrocyte-specific gene expression. This book volume summarizes the work that the authors have done on ß1-integrins over the last 18 years and focuses on the expression and regulation of these proteins in chondrocytes and their role in the context of the unique function of chondrocytes within articular cartilage.
Cell-secreted vesicles : Methods and protocols
Pesents hands-on technological protocols used to target an array of cell-secreted extracellular vesicles (EVs) in a variety of biological systems. Beginning with methods for EV purification and analysis, the book continues with sections on the study of EV functions as well as specific systems and models allowing for the study of EVs of different origin. Written for the highly successful Methods in Molecular Biology series, chapters include introductions to their respective topics, lists of the necessary materials and reagents, step-by-step and readily reproducible laboratory protocols, and tips on troubleshooting and avoiding known pitfalls.
Cell Adhesion and Cytoskeletal Molecules in Metastasis
In this volume, the expression of specific adhesion molecules within human cancer tissues are highlighted. The expression signatures from published DNA microarray and immunohistochemistry studies are detailed. The concept that the alteration of specific adhesion molecules influence the cancer migration ability and cancer damage responses is detailed in this volume; both features are essential for the survival of an invading tumor cell. Defining the minimal adhesion receptors preserved on cancer cells during tumor progression will define the metastatic adhesion signature. Understanding the metastatic adhesion signature will reveal vulnerabilities that could be exploited for the prevention and/or eradication of the invading cancer cell.
Bone disorders
• Bone is the specialized type of connective tissue that has extracellular matrix containing calcium salts. • As bone is a connective tissue, it consists of cells and matrix. • Mineralized extracellular matrix provides hardness to bones. • Bone is a living tissue that shows dynamic structural changes in response to physical stress and hormonal changes. • In addition to support and protection of vital organs, bones act as a storehouse for calcium and phosphates. • Bone also performs hematopoietic function (production of blood cells).
