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Bacterial Exotoxins: How Bacteria Fight the Immune System
Bacterial pathogenicity factors are functionally diverse. They may facilitate the adhesion and colonization of bacteria, influence the host immune response, assist spreading of the bacterium by e.g. evading recognition by immune cells, or allow bacteria to dwell within protected niches inside the eukaryotic cell. Exotoxins can be single polypeptides or heteromeric protein complexes that act on different parts of the cells. At the cell surface, they may insert into the membrane to cause damage; bind to receptors to initiate their uptake; or facilitate the interaction with other cell types. For example, bacterial superantigens specifically bind to major histocompatibility complex (MHC) II mole...
Streptococci and the Host
Streptococci and enterococci are the etiologic agents of infectious diseases that rank among the most severe in human pathology. The diagnosis, antibiotherapy, and prevention of the streptococcal diseases have improved considerably. However, the reemergence of severe streptococcal and enterococcal diseases constitutes a growing public health con cern, which remains open to scientific and medical debate. The XIII'h Lancefield International Symposium on Streptococci and Streptococcal Diseases, held at Institut Pasteur, Paris, France, September 16---2el, 1996, attracted 505 par ticipants from 43 countries. Twenty-two percent of the participants were students, a clear sign of the intense interes...
Cell Signaling in Host–Pathogen Interactions: The Host Point of View
The ability of pathogens, such as parasites, bacteria, fungi and viruses to invade, persist and adapt in both invertebrate and vertebrate hosts is multifactorial and depends on both pathogen and host fitness. Communication between a pathogen and its host relies on a wide and dynamic array of molecular interactions. Through this constant communication most pathogens evolved to be relatively benign, whereas killing of its host by a pathogen represents a failure to adapt. Pathogens are lethal to their host when their interaction has not been long enough for adaptation. Evolution has selected conserved immune receptors that recognize signature patterns of pathogens as non-self elements and initi...
Methods for studying the genetics, molecular biology, physiology, and pathogenesis of the streptococci
This book is devoted entirely to methods developed in and for studies of members of the bacterial family Streptococcaceae. Many of the studies that have been conducted on the Streptococcaceae were initiated because of the diseases they cause, or to enhance their utility from an industrial perspective. However, the results of many of these investigations have demonstrated a complexity among some members of the family that warrants an interest in them in their own right, apart from or in addition to any biomedical or industrial considerations. It is therefore hoped and expected that the advanced methods contained in this book will be of interest to those who work with the streptococci and other Gram-positive organisms, to researchers interested in industrial and medical microbiology and to any researcher who seeks to obtain a better understanding of how microorganisms interact with each other, their environment and their hosts.
Good Germs, Bad Germs
In this "groundbreaking" book, a science writer makes the case for a new model for dealing with bacteria ( Newsweek ). Public sanitation and antibiotic drugs have brought about historic increases in the human life span; they have also unintentionally produced new health crises by disrupting the intimate, age-old balance between humans and the microorganisms that inhabit our bodies and our environment. As a result, antibiotic resistance now ranks among the gravest medical problems of modern times. Good Germs, Bad Germs addresses not only this issue but also what has become known as the "hygiene hypothesis"—an argument that links the over-sanitation of modern life to now-epidemic increases i...
The Comprehensive Sourcebook of Bacterial Protein Toxins
This book describes the major achievements and discoveries relevant to bacterial protein toxins since the turn of the new century illustrated by the discovery of more than fifty novel toxins (many of them identified through genome screening). The establishment of the three-dimensional crystal structure of more than 20 toxins during the same period offers deeper knowledge of structure-activity relationships and provides a framework to understand how toxins recognize receptors, penetrate membranes and interact with and modify intracellular substrates. - Edited by two of the most highly regarded experts in the field from the Institut Pasteur, France - 14 brand new chapters dedicated to coverage...
