Subcellular Proteomic Analysis of Host-pathogen Interactions Using Human Monocytes Exposed to Yersinia Pestis and Yersinia Pseudotuberculosis PDF Download
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Languages : en
Pages : 48
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Book Description
Yersinia pestis, the etiological agent of plague, is of concern to human health both from an infectious disease and a civilian biodefense perspective. While Y. pestis and Y. pseudotuberculosis share more than 90% DNA homology, they have significantly different clinical manifestations. Plague is often fatal if untreated, yet Y. pseudotuberculosis causes severe intestinal distress and is rarely fatal. A better understanding of host response to these closely related pathogens may help explain the different mechanisms of virulence and pathogenesis that result in such different clinical outcomes. The aim of this study was to characterize host protein expression changes in human monocyte-like U937 cells after exposure to Y. pestis and Y. pseudotuberculosis. In order to gain global proteomic coverage of host response, proteins from cytoplasmic, nuclear and membrane fractions of host cells were studied by 2-dimensional differential gel electrophoresis (2-D DIGE) and relative protein expression differences were quantitated. Differentially expressed proteins, with at least 1.5 fold expression changes and p values of 0.01 or less, were identified by MALDI-MS or LC/MS/MS. With these criteria, differential expression was detected in 16 human proteins after Y. pestis exposure and 13 human proteins after Y. pseudotuberculosis exposure, of which only two of the differentially expressed proteins identified were shared between the two exposures. Proteins identified in this study are reported to be involved in a wide spectrum of cellular functions and host defense mechanisms including apoptosis, cytoskeletal rearrangement, protein synthesis and degradation, DNA replication and transcription, metabolism, protein folding, and cell signaling. Notably, the differential expression patterns observed can distinguish the two pathogen exposures from each other and from unexposed host cells. The functions of the differentially expressed proteins identified provide insight on the different virulence and pathogenic mechanisms of Y. pestis and Y. pseudotuberculosis.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 48
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Book Description
Yersinia pestis, the etiological agent of plague, is of concern to human health both from an infectious disease and a civilian biodefense perspective. While Y. pestis and Y. pseudotuberculosis share more than 90% DNA homology, they have significantly different clinical manifestations. Plague is often fatal if untreated, yet Y. pseudotuberculosis causes severe intestinal distress and is rarely fatal. A better understanding of host response to these closely related pathogens may help explain the different mechanisms of virulence and pathogenesis that result in such different clinical outcomes. The aim of this study was to characterize host protein expression changes in human monocyte-like U937 cells after exposure to Y. pestis and Y. pseudotuberculosis. In order to gain global proteomic coverage of host response, proteins from cytoplasmic, nuclear and membrane fractions of host cells were studied by 2-dimensional differential gel electrophoresis (2-D DIGE) and relative protein expression differences were quantitated. Differentially expressed proteins, with at least 1.5 fold expression changes and p values of 0.01 or less, were identified by MALDI-MS or LC/MS/MS. With these criteria, differential expression was detected in 16 human proteins after Y. pestis exposure and 13 human proteins after Y. pseudotuberculosis exposure, of which only two of the differentially expressed proteins identified were shared between the two exposures. Proteins identified in this study are reported to be involved in a wide spectrum of cellular functions and host defense mechanisms including apoptosis, cytoskeletal rearrangement, protein synthesis and degradation, DNA replication and transcription, metabolism, protein folding, and cell signaling. Notably, the differential expression patterns observed can distinguish the two pathogen exposures from each other and from unexposed host cells. The functions of the differentially expressed proteins identified provide insight on the different virulence and pathogenic mechanisms of Y. pestis and Y. pseudotuberculosis.
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Category :
Languages : en
Pages : 20
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Book Description
Host-pathogen interactions result in protein expression changes within both the host and the pathogen. Here, results from proteomic characterization of host response following exposure to Yersinia pestis, the causative agent of plague, and to two near neighbors, Y. pseudotuberculosis and Y. enterocolitica, are reported. Human monocyte-like cells were chosen as a model for macrophage immune response to pathogen exposure. Two-dimensional electrophoresis followed by mass spectrometry was used to identify host proteins with differential expression following exposure to these three closely related Yersinia species. This comparative proteomic characterization of host response clearly shows that host protein expression patterns are distinct for the different pathogen exposures, and contributes to further understanding of Y. pestis virulence and host defense mechanisms. This work also lays the foundation for future studies aimed at defining biomarkers for presymptomatic detection of plague.
Author: Ruifu Yang
Publisher: Springer
ISBN: 9402408908
Category : Medical
Languages : en
Pages : 397
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Book Description
This book addresses nearly every aspect of Y. pestis, approaching it from a new perspective. Topics covered include the history, epidemiology, physiology, ecology, genome, evolution, pathogenesis, host-pathogen interaction, big-data-driven research, vaccines, clinical aspects and future research trends. For centuries, scientists have sought to determine where Y. pestis, the most well-known bacterium and one that has caused a number of high-mortality epidemics throughout human history, comes from, what it is and how it causes the disease. This book works to answer these questions with the help of cutting-edge research results. It not only describes the history of plagues, but also stresses plagues’ effects on human civilization and explores the interaction of Y. pestis with hosts, vectors and the environment to reveal the evolution and pathogenesis. The book offers a valuable guide for researchers and graduate students studying Y. pestis, and will also benefit researchers from other fields, such as infectious diseases, other pathogens and system biology, sharing key insights into bacterial pathogen studies.
Author: Elisabeth Carniel
Publisher: Caister Academic Press Limited
ISBN: 9781908230058
Category : Science
Languages : en
Pages : 0
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Book Description
Three members of the genus Yersinia are important human pathogens, causing diseases ranging from the deadly Plague (Yersinia pestis) to a relatively mild gastroenteritis (Y. enterocolitica and Y. pseudotuberculosis). Plague, a re-emerging disease, is endemic in many parts of the world. The extraordinary pathogenicity of Y. pestis makes it a potential bioterrorist weapon. On the other hand, the two enteropathogenic Yersinia species represent the third most common bacterial cause of gastroenteritis in Europe and probably elsewhere, although their prevalence is largely underestimated. This, and the emergence of antibiotic resistant Y. pestis in recent years, highlights the urgency to understand the mechanisms of pathogenicity and the need to devise new strategies for the prevention and control of human pathogenic Yersinia. In this book, leading Yersinia researchers review the hot topics in the systems biology and the control of these important bacteria. Topics include: transcriptome analysis of the bacterial response to the host, and of the host response, to a Yersinia infection * proteome analysis of the bacterial and host responses * treatment and antibiotic resistance * vaccines * surveillance * control. The book will be essential reading for everyone working on Yersinia and related organisms. It is recommended reading for researchers interested in biodefense, microbial genomics, and the evolution of microbial virulence.
Author: Robert D. Perry
Publisher: Springer Science & Business Media
ISBN: 0387721231
Category : Medical
Languages : en
Pages : 454
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Book Description
The 9th International Symposium on Yersinia was held in Lexington, Kentucky, USA on October 10-14, 2006. Over 250 Yersinia researchers from 18 countries gathered to present and discuss their research. In addition to 37 oral presentations, there were 150 poster presentations. This Symposium volume is based on selected presentations from the meeting and contains both reviews and research articles. It is divided into six topic areas: 1) genomics; 2) structure and metabolism; 3) regulatory mechanisms; 4) pathogenesis and host interactions; 5) molecular epidemiology and detection; and 6) vaccine and antimicrobial therapy development. Consequently, this volume covers a wide range of current research areas in the Yersinia field.
Author: David A. Dougan
Publisher: Springer Science & Business Media
ISBN: 9400759401
Category : Medical
Languages : en
Pages : 338
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Book Description
This book contains an extensive collection of critical reviews, from leading researchers in the field of regulated protein degradation. It covers the role of regulated proteolysis in a range of microorganisms (from Gram positive, Gram negative and pathogenic bacteria to Archaea and the Baker’s yeast Saccharomyces cerevisiae).
Author: Burt Anderson
Publisher: Springer Science & Business Media
ISBN: 0387281592
Category : Science
Languages : en
Pages : 251
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Book Description
The purpose of this book is to bring together, in a single volume, the most up-to-date information concerning microbes with potential as bioterrorist weapons. The primary audience includes microbiologists, including bacteriologists, virologists and mycologists, in academia, government laboratories and research institutes at the forefront of studies concerning microbes which have potential as bioterrorist weapons, public health physicians and researchers and scientists who must be trained to deal with bioterrorist attacks as well as laboratory investigators who must identify and characterize these microorganisms from the environment and from possibly infected patients.
Author: Hubert Hilbi
Publisher: Springer Science & Business Media
ISBN: 3642405916
Category : Medical
Languages : en
Pages : 297
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Book Description
Legionnaires’ disease, a potentially fatal type of pneumonia primarily affecting elderly and immuno-compromised persons, is caused by the ubiquitous environmental bacterium Legionella pneumophila. This book offers authoritative reviews of different facets of its virulence, focusing on comparative phagocyte infection, virulence gene regulation, biochemical functions of effector proteins and cellular pathogen-host interactions, as well as host responses and immunity to L. pneumophila. Taken together, the contributions in this compilation provide a state-of-the-art overview of current insights into the molecular pathogenesis of the opportunistic and potentially fatal pathogen L. pneumophila.
Author: Debmalya Barh
Publisher: Springer Science & Business Media
ISBN: 8132211847
Category : Medical
Languages : en
Pages : 825
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Book Description
“Omics for Personalized Medicine” will give to its prospective readers the insight of both the current developments and the future potential of personalized medicine. The book brings into light how the pharmacogenomics and omics technologies are bringing a revolution in transforming the medicine and the health care sector for the better. Students of biomedical research and medicine along with medical professionals will benefit tremendously from the book by gaining from the diverse fields of knowledge of new age personalized medicine presented in the highly detailed chapters of the book. The book chapters are divided into two sections for convenient reading with the first section covering the general aspects of pharmaocogenomic technology that includes latest research and development in omics technologies. The first section also highlights the role of omics in modern clinical trials and even discusses the ethical consideration in pharmocogenomics. The second section is focusing on the development of personalized medicine in several areas of human health. The topics covered range from metabolic and neurological disorders to non-communicable as well as infectious diseases, and even explores the role of pharmacogenomics in cell therapy and transplantation technology. Thirty-four chapters of the book cover several aspects of pharmacogenomics and personalized medicine and have taken into consideration the varied interest of the readers from different fields of biomedical research and medicine. Advent of pharmacogenomics is the future of modern medicine, which has resulted from culmination of decades of research and now is showing the way forward. The book is an honest endeavour of researchers from all over the world to disseminate the latest knowledge and knowhow in personalized medicine to the community health researchers in particular and the educated public in general.
Author: Alfred Wittinghofer
Publisher: Springer
ISBN: 3709118069
Category : Science
Languages : en
Pages : 447
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Book Description
This first of two volumes provides a general overview of the genetics, structure, mechanism and regulation of the Ras superfamily proteins and describes in detail the signaling pathways and processes regulated by specific members of this family. The focus of this first volume is on the Rho and Ras subfamily of small G proteins. Renowned scientists provide insights into the biochemistry of the classical and non-classical small G-protein family members, their spatio-temporal regulation, their effectors and their roles in health and disease. Together with Volume 2, this book provides a comprehensive and state-of-the-art work on small G-proteins (GTPases). It is intended for graduates and professors in biochemistry and cell biology already working on small G-proteins (small GTPases), but also offers an extremely valuable resource for those readers who are new to the field.
