Mucosal Immunity and Evasion Strategies of Neisseria Gonorrhoeae PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download Mucosal Immunity and Evasion Strategies of Neisseria Gonorrhoeae PDF full book. Access full book title Mucosal Immunity and Evasion Strategies of Neisseria Gonorrhoeae by Mónica Imarai. Download full books in PDF and EPUB format.
Author: Mónica Imarai
Publisher:
ISBN:
Category : Medicine
Languages : en
Pages :
Get Book Here
Book Description
Mucosal Immunity and Evasion Strategies of Neisseria gonorrhoeae.
Author: Mónica Imarai
Publisher:
ISBN:
Category : Medicine
Languages : en
Pages :
Get Book Here
Book Description
Mucosal Immunity and Evasion Strategies of Neisseria gonorrhoeae.
Author: Michael W. Russell
Publisher: Frontiers Media SA
ISBN: 2889639614
Category : Medical
Languages : en
Pages : 167
Get Book Here
Book Description
Author: Donnie Pickel
Publisher:
ISBN:
Category : Complement (Immunology)
Languages : en
Pages : 103
Get Book Here
Book Description
Antimicrobial resistant Neisseria gonorrhoeae (Ng) is an urgent threat to public health worldwide. Ng causes gonorrhea, the second most prevalent sexually transmitted bacterial infection. Left untreated, gonorrhea can lead to pelvic inflammatory disease, ectopic pregnancy, sterility, and in men can increase susceptibility to HIV. The current recommended treatment is a dual therapy with two antibiotics azithromycin and ceftriaxone. However, many countries are reporting cases with reduced effectiveness of this treatment method. This has placed a greater urgency on the development of preventative therapeutics. There is currently no commercial vaccine available for Ng infection. The development of preventative treatment strategies has long been impeded by Ng’s ability to evade the immune system, particularly the complement system. Ng is an obligate human pathogen and has evolved numerous mechanisms to interact with host-derived molecules that negatively regulate the activation of the immune system. Previous characterization of these mechanisms has focused on one class of complement inhibitors, fluid-phase inhibitors. To fully understand Ng immune evasion and the host molecules that contribute to it, investigating the role of the other class of complement inhibitors, membrane-associated complement inhibitors (mCIs) is needed. mCIs like CD46, CD55, and CD59 are expressed by human epithelial cells to prevent formation of the membrane attack complex on the surface of human cells. I hypothesized that these proteins may be sequestered by Ng during infection and create localized regions of immune activation allowing Ng to persist. To test this, we used a co-culture serum bactericidal assay (ccSBA) where human epithelial cells were infected with Ng, treated with normal human serum, a vehicle for the components of the complement system, and monitored bacterial viability over time. Using the ccSBA we demonstrated that increasing host expression of mCIs resulted in higher levels of Ng survival, while decreasing mCI expression resulted in lower Ng survival. We then used CRISPR to knock out all three of CD46, CD55, and CD59 simultaneously. Surprisingly, this had the opposite effect of what we expected, resulting in a substantial increase in Ng survival. We observed that the lack of mCIs rendered host cells susceptible to complement and speculated that this could result in the release of host-derived molecules that stimulated an alternative mechanism of Ng immune evasion. We used a strain of Ng deficient in this alternative mechanism and found that the absence of mCI expression resulted in a significant reduction in Ng survival. Finally, we expressed each of CD46, CD55, and CD59 individually and found that all three could support Ng survival alone. In summary, this dissertation shows that mCIs are involved in Ng immune evasion. Further it demonstrates the value of the ccSBA in investigating the role of host-derived molecules in Ng immune evasion.
Author: Crispian Scully
Publisher: Academic Press
ISBN: 0128136820
Category : Medical
Languages : en
Pages : 124
Get Book Here
Book Description
Saliva Protection and Transmissible Diseases provides a review of saliva protection, raising debate on micro-organisms potentially transmissible in saliva, and also considering the evidence on diseases that may be transmitted by kissing. Saliva is a complex body fluid essential to health, especially mastication, swallowing and speech, and hyposalivation can lead to dysfunction and even infection. More serious pathogens, such as herpes viruses and papillomaviruses can be conveyed by kissing, as can potentially lethal micro-organisms present in some saliva, such as meningococci, fungal organisms and Ebola viruses. Stipulates the defensive roles of saliva, an important topic not previously reviewed in-depth in literature Provides awareness that saliva also transmits infectious agents that can produce serious or even lethal diseases Gives understanding that kissing may be an at-risk practice
Author: Kenneth Murphy
Publisher: Garland Science
ISBN: 9780815344575
Category : Medical
Languages : en
Pages :
Get Book Here
Book Description
The Janeway's Immunobiology CD-ROM, Immunobiology Interactive, is included with each book, and can be purchased separately. It contains animations and videos with voiceover narration, as well as the figures from the text for presentation purposes.
Author: Yi-Wei Tang
Publisher: Academic Press
ISBN: 0323899927
Category : Science
Languages : en
Pages : 3535
Get Book Here
Book Description
Molecular Medical Microbiology, Third Edition presents the latest release in what is considered to be the first book to synthesize new developments in both molecular and clinical research. The molecular age has brought about dramatic changes in medical microbiology, along with great leaps in our understanding of the mechanisms of infectious disease. This third edition is completely updated, reviewed and expanded, providing a timely and helpful update for microbiologists, students and clinicians in the era of increasing use of molecular techniques, changing epidemiology and prevalence, and increasing resistance of many pathogenic bacteria. Written by experts in the field, chapters include cutting-edge information and clinical overviews for each major bacterial group, along with the latest updates on vaccine development, molecular technology and diagnostic technology. Completely updated and revised edition of this comprehensive and accessible reference on molecular medical microbiology Includes full color presentations throughout Delves into in-depth discussions on individual pathogenic bacteria in a system-oriented approach Includes a clinical overview for each major bacterial group Presents the latest information on vaccine development, molecular technology and diagnostic technology Provides more than 100 chapters on all major groups of bacteria
Author: Bruce Alberts
Publisher:
ISBN: 9780815332183
Category : Cytology
Languages : en
Pages : 0
Get Book Here
Book Description
Author: Tak W. Mak
Publisher: Academic Press
ISBN: 0080534481
Category : Medical
Languages : en
Pages : 1217
Get Book Here
Book Description
The Immune Response is a unique reference work covering the basic and clinical principles of immunology in a modern and comprehensive fashion. Written in an engaging conversational style, the book conveys the broad scope and fascinating appeal of immunology. The book is beautifully illustrated with superb figures as well as many full color plates. This extraordinary work will be an invaluable resource for lecturers and graduate students in immunology, as well as a vital reference for research scientists and clinicians studying related areas in the life and medical sciences. Current and thorough 30 chapter reference reviewed by luminaries in the field Unique ‘single voice' ensures consistency of definitions and concepts Comprehensive and elegant illustrations bring key concepts to life Provides historical context to allow fuller understanding of key issues Introductory chapters 1-4 serve as an ‘Immunology Primer' before topics are discussed in more detail
Author: Richard Bryant Roberts
Publisher: John Wiley & Sons
ISBN:
Category : Medical
Languages : en
Pages : 456
Get Book Here
Book Description
Author:
Publisher: Academic Press
ISBN: 0080860567
Category : Science
Languages : en
Pages : 643
Get Book Here
Book Description
Established almost 30 years ago, Methods in Microbiology is the most prestigious series devoted to techniques and methodology in the field. Now totally revamped, revitalized, with a new format and expanded scope, Methods in Microbiology will continue to provide you with tried and tested, cutting-edge protocols to directly benefit your research. Focuses on the methods most useful for the microbiologist interested in the way in which bacteria cause disease Includes section devoted to 'Approaches to characterising pathogenic mechanisms' by Stanley Falkow Covers safety aspects, detection, identification and speciation Includes techniques for the study of host interactions and reactions in animals and plants Describes biochemical and molecular genetic approaches Essential methods for gene expression and analysis Covers strategies and problems for disease control
