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Main description:
The great majority of bacterial infections are initiated by the adhesion of pathogenic bacteria to cells and mucosal surfaces of the host. The sequela of adhesion may range from the action of toxins outside target cells to their penetration into or through tissue. Besides the consequences of bacterial adhesion related in infection, the result may be colonization of mucosal surfaces with normally harmless bacteria, which in stress situations may become virulent, a phenomenon known as nosocomial infections. With very few exceptions, adhesion is carbohydrate speci fic. It is mediated by bacterial recognition proteins that are, according to the phenomenon studied, termed adhesins or hem agglutinins; the term "lectin" is sometimes also used. The chemical nature of the ad he sins and their organization on the bacterial surface have been studied intensively in many laboratories. The application of genetic and biochemical techniques has led to substantial progress in the molecular characterization of adhesins in recent years. We now know that adhesins may occur as structural subunits of fimbriae and that they may form fimbriae which can be considered as mono- or multifunctional linear adhesin polymers. Other adhesins do not form recognizable structures and are tenta tively called nonfimbrial. Adhesins may even be components of bacterial cell walls. Adhesin-receptor specificities have been unravelled. The study of the distribution of receptors in tissue has created implications about the possible susceptibility to infections.
Contents:
Genetic Determinants Coding for Fimbriae and Adhesins of Extra-intestinal Escherichia coli.- Genetics of Adhesive Fimbriae of Intestinal Escherichia coli.- Nature and Organization of Adhesins.- Serologic Classification of Fimbriae.- Adhesins as Lectins: Specificity and Role in Infection.- Tissue Tropism of Escherichai coli Adhesins in Human Extraintestinal Infections.- Colonization Factor Antigens of Human Pathogens.- Colonization Factor Antigens of Enterotoxigenic Escherichia coli in Animals.- Inhibition of Bacterial Attachment: Examples from the Urinary and Respiratory Tract.- Synthetic Peptides: Prospects for a Pili (Fimbriae)-Based Synthetic Vaccine.
PRODUCT DETAILS
Publisher: Springer (Springer-Verlag Berlin and Heidelberg GmbH & Co. K)
Publication date: December, 2011
Pages: 218
Weight: 392g
Availability: Available
Subcategories: Biochemistry, Diseases and Disorders, Immunology, Microbiology
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