Domenico Ribatti

"The book presents recent advances in the field of angiogenesis and antiangiogenesis. Starting with the hypothesis of Judah Folkman that tumor growth is angiogenesis dependent, this area of research now has a solid scientific foundation. Tumor growth, meta"

Recent Advances in Angiogenesis and Antiangiogenesis

This book covers the most important aspects of Mast Cell Biology. It enables the reader to immerse in the new aspects of Mast Cells biology, which are no longer seen as an immunological effector cell, but a multi-functional efector cell. One which have roles that expands beyond the immunological realm and shows deep implications in the pathophysiology of several human disorders as well as transforming into a very important and promising target for therapy development in cancer, neurodegerative disorders, angiogenesis, inflammation and allergy. Across twelve chapter on Mast Cells Research, starting from the discovery and characterization of Mast Cells until the lastest findings and translational perspectives, the reader will get a complete view and a profound insight on the fundamental and applied aspects of Mast Cells Biology. The chapters are written in a clear and concise way in order to help navigating through complex biological scenarios. The author, Domenico Ribatti, Full professor of the University of Bari, is an expert in the field of Mast Cells with more than 800 publications.

A Multifunctional Effector Cell

The Mast Cell

Enrico Crivellato

Mast cells are versatile, tissue-homing secretory cells, which were first described by Paul Ehrlich in 1878. Mast cells have long been implicated in the pathogenesis of allergic reactions and certain protective responses to parasites. Their functional role, however, has been discovered to be increasingly complex and multifarious. Mast cells have been implicated in various cell-mediated immune reactions, being found in tissues from multiple disease sites, and as a component of the host reaction to bacteria, parasite, and even virus infections. They have also been shown to participate to angiogenic and tissue repair processes after injury. The importance of a possible functional link between chronic inflammation and cancer has long been recognized. As most tumours contain inflammatory cell infiltrates, which often include plentiful mast cells, the question as to the possible contribution of mast cells to tumour development has progressively been emerged. In this book, the general biology of these cells, their development, anatomical distribution and phenotype as well as their secretory products will first be discussed. The biology of tumour cells, their structural and molecular characteristics, the specificity of the tumour microenvironment and the development of a vascular network in the tumour context will be analyzed. The involvement of mast cells in tumour biology and tumour fate will then be considered, with particular emphasis on the capacity of these cells to stimulate tumour growth by promoting angiogenesis and lymphangiogenesis. The last chapter suggest that mast cells may serve as a novel therapeutic target for cancer treatment.

from Biology to Clinic

Mast Cells and Tumours

Mast cells (MC) are phylogenetically old cells which are distributed throughout the human organism. MC are found in almost all of the major organs and tissues of the body, particularly in association with connective tissue structures such as blood vessels, lymphatic vessels and nerves, and in proximity to surfaces that interface the external environment, such as those of the respiratory and gastrointestinal system and the skin. This selective accumulation at tissue sites where foreign material attempts to invade the host suggests that MC are among the first cells to initiate defensive mechanisms. MC have long been recognized as key cells of type I hypersensitivity reactions. Several lines of evidence, however, indicate that they not only express critical effector functions in classic IgE-associated allergic disorders, but also play important roles in host defense against parasites, bacteria and perhaps even viruses. Indeed, it is now clear that MC can contribute to host defense in the context of either acquired or innate immune responses through the release of a myriad of pro-inflammatory and immunoregulatory molecules and the expression of a wide spectrum of surface receptors for cytokines and chemokines. Moreover, there is growing evidence that MC exert distinct non-immunological functions, playing a relevant role in tissue homeostasis, remodeling and fibrosis as well as in the processes of tissue angiogenesis.

Francesco Pezzella

Tumor Vascularization discusses the different types of growth of tumor blood vessels and their implications on research and healthcare. The book is divided into three parts: the first one, General Mechanisms, discusses different vessel growth mechanisms, such as sprouting angiogenesis, non-angiogenesis dependent growth, intussusceptive microvascular growth, vascular co-option and vasculogenic mimicry. The second and third parts, entitled Clinical Implications and Therapeutic Implications are dedicated to translating recent findings in this field to patient treatment and healthcare. This book is a valuable source for cancer researchers, oncologists, graduate students and members of the biomedical field who are interested in tumor progression and blood vessels. Explains new, non-orthodox concepts recently developed and related to the modality of growth of tumor blood vessels Provides information on the types of angiogenesis, non-angiogenesis dependent growth and vascular co-option, discussing both their similarities and differences Encompasses a discussion on clinical implications of tumor vascularization to translate research findings into treatment

Tumor Vascularization

Blood vessels of tumors display many structural and functional abnormalities. Their unusual leakiness, potential for rapid growth and remodeling, and expression of distinctive surface molecules mediate the dissemination of tumor cells in the bloodstream and maintain the tumor microenvironment. Like normal blood vessels, they consist of endothelial cells, mural cells and their enveloping basement membrane. Common features, irrespective of their origin, size and growth pattern, are absent hierarchy, formation of large-caliber sinusoidal vessels, markedly heterogeneous density, increased permeability, decreased and abnormal pericyte-endothelial cell adhesion, irregular basement membrane structure, and the incorporation of bone-marrow-derived endothelial progenitor cells in the microvasculature. A number of specific tumor endothelial markers have been identified, as well as chromosomal abnormalities. These markers may be used to deliver drugs specifically and selectively to the tumor microvasculature.

Morphofunctional Aspects of Tumor Microcirculation

Vascular Morphogenesis: Methods and Protocols provides a range of techniques for studying vascular morphogenesis in vivo and in vitro, reflecting advances in the field. Endothelial cell signaling is currently believed to promote fundamental cues for cell fate specification, embryo patterning, organ differentiation and postnatal tissue remodeling. Understanding the concept of vascular bed specificity represents a major challenge for future investigations. Indeed, one of the most interesting theoretical perspectives and practical applications of endothelial cell signaling is the possibility for these cells to maintain their inductive potential during adult life. Written in the highly successful Methods in Molecular Biology series format, chapters include introductions to their respective topics, lists of the necessary materials, step-by-step, readily reproducible laboratory protocols and tips on troubleshooting and avoiding known pitfalls. Practical and authoritative, Vascular Morphogenesis: Methods and Protocols will serve as a instructive and useful reference for cell biologists, anatomists, pathologists and physiologists, as well as all those interested in this area of biological study.

Domenico Ribatti

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