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Explains the unique characteristics that cause this large group of bacteria responsible for tuberculosis and leprosy to function differently; serves as a valuable reference for those working in the areas of biochemistry, genetics, genomics, and immunology.
The bacterial cell wall represents a very complex structure disconnecting the interior of single-cell organisms from the environment, thus protecting, but also enabling, them to interact with the surrounding milieu and to exchange both substances and information. Knowledge of the biochemistry of the cell wall (components) and the genetic background helps to understand their significance with regard to microbiology and immunology of bacteria. This book represents the second edition of a publication which was presented nearly 20 years ago in the German language (Die bakterielle Zellwand). Since that time our knowledge in this field has been significantly enlarged. Therefore, the manuscript had to be completely revised and updated. To maintain both the size and the introductory character of the book at least to a great extent, the authors had to restrict the presented material to that which appears basic and most important. This requirement must inevitably bring about many subjective factors. As pointed out in the first edition, the term cell wall was not taken too strictly. Since the constituents located outside the cytoplasmic membrane are frequently difficult to divide in structure, localisation, and/or function into true cell wall components and supplementary substances, they are all at least briefly mentioned.
This book summarizes the progress in studies of tuberculosis host-pathogen interactions from several perspectives: molecular microbiology, immunology, animal models, clinical studies, epidemiology, and drug discovery. Tuberculosis (TB) remains a severe global public health problem. Complex interactions between environmental, microbial and host factors lead to clinically relevant infections. Studies on bacterial virulence, host-genetic, and immunological factors contributing to the susceptibility to TB provide an ever-growing foundation of knowledge that is critical to finding new interventions. Studies of immune mechanisms against M. tuberculosis infection have identified immunological markers associated with specific phenotypes in the host, providing insight into how they may be used to augment current treatment strategies. Recent advances in diagnosis, therapeutics and vaccines, as well as basic-research oriented studies have shed light on the development of new directions for prevention, treatment and control of TB. Improved understanding of the interplay between the bacterium and host is a key component of reducing incidence worldwide.
Studies of the bacterial cell wall emerged as a new field of research in the early 1950s, and has flourished in a multitude of directions. This excellent book provides an integrated collection of contributions forming a fundamental reference for researchers and of general use to teachers, advanced students in the life sciences, and all scientists in bacterial cell wall research. Chapters include topics such as: Peptidoglycan, an essential constituent of bacterial endospores; Teichoic and teichuronic acids, lipoteichoic acids, lipoglycans, neural complex polysaccharides and several specialized proteins are frequently unique wall-associated components of Gram-positive bacteria; Bacterial cells evolving signal transduction pathways; Underlying mechanisms of bacterial resistance to antibiotics.
The authors discuss fundamental questions about the biology, genetics, mechanisms of pathogenicity, mechanisms of resistance, and drug development strategies that are likely to provide important new knowledge about TB and new interventions to prevent and treat this disease.
Progress obtained by mycobacteriology in recent years is undeniable with regards to preventing, detecting, and treating cases of tuberculosis, millennial disease that is still present as public health issue worldwide. We present here high-impact research and interest topics related to the application of new methodologies, especially molecular methods for rapid diagnostic such as rapid DST, application of high performance liquid chromatography, molecular epidemiology and molecular diagnostic testing on post mortem. Currently, the constant search for vaccines that prevent the disease is promising through research of the immune response generated by the host towards the bacterium, and the effectiveness that may be achieved from developed vaccines. Another high-impact factor is the one generated by considering tuberculosis as a social disease with an infectious component reflected in research about tuberculosis and human rights. Finally, we present important issues of the pathogen interaction with different hosts. The constant knowledge generation that expands the frontiers of understanding is a key factor for finding solutions and successful activities for public health.
Tuberculosis (TB) is an infectious disease caused by Mycobacterium tuberculosis and still represents one of the global health threats to mankind. The World Health Organization estimated more than 10 million new cases and reported more than 1.5 million deaths in 2019, thus ranking TB among the main causes of death due to a single pathogen. Standard anti-TB therapy includes four first-line antibiotics that should be administered for at least six months. However, in the case of multi- and extensively drug-resistant TB, second-line medications must be used and these frequently cause severe side effects resulting in poor compliance. Developing new anti-TB drug candidates is therefore of outmost importance. In this Special Issue dedicated to Tuberculosis Drug Discovery and Development, we present the main and latest achievements in the fields of drug and target discovery, host-directed therapy, anti-virulence drugs, and describe the development of two advanced compounds: macozinone and delpazolid. In addition, this Special Issue provides an historical perspective focused on Carlo Forlanini, the inventor of pneumothorax for TB treatment, and includes an overview of the state-of-the-art technologies which are being exploited nowadays in TB drug development. Finally, a summary of TB vaccines that are either approved or undergoing clinical trials concludes the Special Issue.
This book provides an up-to-date overview of the architecture and biosynthesis of bacterial and archaeal cell walls, highlighting the evolution-based similarities in, but also the intriguing differences between the cell walls of Gram-negative bacteria, the Firmicutes and Actinobacteria, and the Archaea. The recent major advances in this field, which have brought to light many new structural and functional details, are presented and discussed. Over the past five years, a number of novel systems, e.g. for lipid, porin and lipopolysaccharide biosynthesis have been described. In addition, new structural achievements with periplasmic chaperones have been made, all of which have revealed amazing details on how bacterial cell walls are synthesized. These findings provide an essential basis for future research, e.g. the development of new antibiotics. The book’s content is the logical continuation of Volume 84 of SCBI (on Prokaryotic Cytoskeletons), and sets the stage for upcoming volumes on Protein Complexes.
Infectious diseases are the leading cause of death globally, particularly among children and young adults. The spread of new pathogens and the threat of antimicrobial resistance pose particular challenges in combating these diseases. Major Infectious Diseases identifies feasible, cost-effective packages of interventions and strategies across delivery platforms to prevent and treat HIV/AIDS, other sexually transmitted infections, tuberculosis, malaria, adult febrile illness, viral hepatitis, and neglected tropical diseases. The volume emphasizes the need to effectively address emerging antimicrobial resistance, strengthen health systems, and increase access to care. The attainable goals are to reduce incidence, develop innovative approaches, and optimize existing tools in resource-constrained settings.
This book presents in an easy-to-read format a summary of the important central aspects of microbial glycobiology, i.e. the study of carbohydrates as related to the biology of microorganisms. Microbial glycobiology represents a multidisciplinary and emerging area with implications for a range of basic and applied research fields, as well as having industrial, medical and biotechnological implications. - Individual chapters provided by leading international scientists in the field yield insightful, concise and stimulating reviews - Provides researchers with an overview and synthesis of the latest research - Each chapter begins with a brief 200 word Summary/Abstract detailing the topic and focus of the chapter, as well as the concepts to be addressed - Allows researchers to see at a glance what each chapter will cover - Each chapter includes a Research Focus Box - Identifies important problems that still need to be solved and areas that require further investigation