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Matricellular Receptors as Potential Targets in Anti-Cancer Therapeutic Strategies
The invasive character of a primary cancer is greatly dependent on numerous interactions between tumor cells and their extracellular surroundings. Matricellular receptors are defined as (cell-surface) receptors that bind extracellular matrix (ECM) structural proteins and soluble factors dynamically acting on ECM homeostasis. Matricellular receptors mediate numerous signalings from the extracellular environment to cell nucleus and drive main biological functions that are cell growth, survival and migration. Numerous data from the last decade evidence that matricellular receptors are biosensors that allow to a tumor cell answering to microenvironmental variations, and in this sense they are im...
Ways to improve tumor uptake and penetration of drugs into solid tumors
The main scope of this topic is to give an update on pharmacologic and non-pharmacologic approaches to enhance uptake and penetration of cancer drugs into tumors. Inadequate accumulation of drugs in tumors has emerged over the last decade as one of the main problems underlying therapeutic failure and drug resistance in the treatment of cancer. Insufficient drug uptake and penetration is causally related to the abnormal tumor architecture. Thus, poor vascularization, increased resistance to blood flow and impaired blood supply represent a first obstacle to the delivery of antitumor drugs to tumor tissue. Decreased or even inverted transvascular pressure gradients compromise convective deliver...
All 3 Types of Glial Cells Are Important for Memory Formation
The vertebrate brain contains neurons and 3 classical types of glia cells, astrocytes, oligodendrocytes and microglia. Astrocytes and microglia have mainly been studied in gray matter, whereas oligodendrocytes myelinate white matter tracts. Until recently microglial effects were considered mainly during pathological conditions, but is now known that microglia plays important roles also in normal brain function. All these 3 glial cell types and their collaboration with neurons are important for learning. The concept that glia cells are important for cognitive function is not new. A glial-neuronal theory of brain function was proposed by Galambos in 1961. Hyden and Egyhazi demonstrated glial R...
Encyclopedic Reference of Vascular Biology & Pathology
This reference provides a synthesis of the whole field of vascular biology, from the latest advances in the study of the structure and function of blood vessels to recent investigations of their interaction with blood cells, with non-cellular constituants of the blood, or with cells of the neighbouring tissue. The latest results from tumor angiogenesis to the latest advances in atherosclerosis research are discussed by leading experts in the field. Together with the CD-ROM this guarantees both researchers and clinicians quick and easy access to all relevant information.
Proteolysis in Cell Functions
The proteolytic enzymes have an essential function in all cells. Their activities are regulated by the rate of synthesis, activation of proenzymes and by the rate of synthesis of their inhibitors. They are synthesized in ribosomes like any other proteins and transported to various storage organelles or secreted from the cells and are activated in the pericellular space or in interstitium. Various cells and tissues have their characteristic enzyme patterns which serve their specific functions. Proteolytic enzymes take part and often have a regulatory role in numerous phases of cell function, e.g. cell division, migration, apoptotic as well as necrotic cell death etc. Diseases in which proteolysis has been subject of active research are e.g. cancer metastasis, viral infections, e.g. HIV, and Alzheimer's disease. They are also an essential part in any tissue remodelling, wound healing, throughout the kingdom of fauna and flora.
Inhibition of Matrix Metalloproteinases
This volume contains papers from a multidisciplinary conference convened to discuss mechanisms of action, pharmacology, models for drug development, and recent positive clinical trial data relating to the inhibition of collagenases and related metalloproteinases matrix (MMPs). Excess metalloproteinase activity has been identified in many disease processes, and finally products for the specific use as metalloproteinase inhibitors are about to be marketed. In this book, two novel themes are explored: the arguments for and against broad-spectrum versus specific MMP inhibitors, and the potential usefulness of chairside diagnostic kits for clinical determination of excessive MMP activity.
Biology of Invertebrate and Lower Vertebrate Collagens
Knowledge in the field of the biology of the extracellular matrix, and in particular of collagen, has made considerable progress over the last ten years, especially in mammals, birds and ln man with respect to very important applied medical aspects. Basic knowledge in the animal kingdom overall has increased more slowly and haphazardly. We, therefore, considered it useful to organize a meeting specifically devoted to the study of the invertebrate and lower vertebrate collagens. The NATO Scientific Division financed an Advanced Research Workshop aimed at bringing together experts qualified in collagen biology (with morphological, biochemical and genetic specialization) with researchers who ar...
Cancer Research
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L'endomètre
L'endomètre, ce remarquable tissu d'origine mésenchymateuse doté de plasticité et de mémoire, tissu cible hormono sensible mais aussi doué de sécrétions propres, rythme par ses remaniements perpétuels la vie de la femme. Son activité s’étend de la période pré pubertaire jusqu’à la ménopause… et au delà. Il joue un rôle clé dans la procréation. A chaque époque de la vie, il peut développer des pathologies et présenter des dysfonctionnements. Il réagit également aux agressions pathologiques qu’elles soient gynécologiques, générales, métaboliques, infectieuses ou environnementales, ainsi qu’à leur thérapeutique. La connaissance fine de son fonctionnement ...
