Immune evasion strategies in protozoan-host interactions 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 Immune evasion strategies in protozoan-host interactions PDF full book. Access full book title Immune evasion strategies in protozoan-host interactions by Alexandre Morrot. Download full books in PDF and EPUB format.
Author: Alexandre Morrot
Publisher: Frontiers Media SA
ISBN: 2832553311
Category : Medical
Languages : en
Pages : 477
Get Book Here
Book Description
The protozoa are the most ancient members of the animal kingdom and they have evolved the intracellular parasitism to ensure their survival strategies. Protozoan parasites that infect humans are extremely diverse among eukaryotes. They are responsible for many human diseases such as amebiasis, Chagas disease, malaria, toxoplasmosis, leishmaniasis and African sleeping sickness. The ability of protozoans to cause disease depends on the nature and number of infecting organisms, the route of infection, the virulence factors associated with the microorganism, and the strength of host defenses. This host-parasite interaction is also subject to constant change as the infection proceeds and can lead to a range of outcomes, from elimination of the pathogen to death of the host, depending on the states of latency and the extent of colonization that the protozoan achieves in the course of infection. Several species of parasitic protozoa harbor specialized virulence factors whose products can overcome the host´s immunity and promote their survival. These factors act at several different checkpoints of the host immune responses, from the first components of the innate immune response to the induction and maintenance of adaptive memory responses. Many protozoan species have evolved mechanisms that modulate and inhibit host sensors, microRNA circuits and signaling pathways that permit the host to detect infection. These factors can act, inter alia, by inhibiting the complement cascade, subverting phagocyte activation and impairing leukocyte migratory responses, so undermining the immune system thus facilitating the pathogen evasion and its continued persistence in the host. In this research topic we welcome the contribution of original research article as well as reviews on the field.
Author: Alexandre Morrot
Publisher: Frontiers Media SA
ISBN: 2832553311
Category : Medical
Languages : en
Pages : 477
Get Book Here
Book Description
The protozoa are the most ancient members of the animal kingdom and they have evolved the intracellular parasitism to ensure their survival strategies. Protozoan parasites that infect humans are extremely diverse among eukaryotes. They are responsible for many human diseases such as amebiasis, Chagas disease, malaria, toxoplasmosis, leishmaniasis and African sleeping sickness. The ability of protozoans to cause disease depends on the nature and number of infecting organisms, the route of infection, the virulence factors associated with the microorganism, and the strength of host defenses. This host-parasite interaction is also subject to constant change as the infection proceeds and can lead to a range of outcomes, from elimination of the pathogen to death of the host, depending on the states of latency and the extent of colonization that the protozoan achieves in the course of infection. Several species of parasitic protozoa harbor specialized virulence factors whose products can overcome the host´s immunity and promote their survival. These factors act at several different checkpoints of the host immune responses, from the first components of the innate immune response to the induction and maintenance of adaptive memory responses. Many protozoan species have evolved mechanisms that modulate and inhibit host sensors, microRNA circuits and signaling pathways that permit the host to detect infection. These factors can act, inter alia, by inhibiting the complement cascade, subverting phagocyte activation and impairing leukocyte migratory responses, so undermining the immune system thus facilitating the pathogen evasion and its continued persistence in the host. In this research topic we welcome the contribution of original research article as well as reviews on the field.
Author: Jian Du
Publisher: Frontiers Media SA
ISBN: 2832509738
Category : Science
Languages : en
Pages : 231
Get Book Here
Book Description
Author: Farhat Afrin
Publisher: BoD – Books on Demand
ISBN: 1789841011
Category : Medical
Languages : en
Pages : 234
Get Book Here
Book Description
Leishmania parasites plague the mammalian host causing high morbidity and mortality. The parasites persist in the hostile milieu, crippling its defensive arsenal. In the face of mounting resistance to an antiquated drug arsenal, new approaches are urgently desired to keep the infection at bay. Furthermore, to strengthen the leishmaniasis elimination drive, particular emphasis has to be laid on identification of new targets and vaccination strategies. This book gives a brief glimpse of the epidemiology of leishmaniasis, immune evasion, vaccination, and therapeutic modalities that may work by untangling the immunological cross-wires of pathogenic cross-talk. The Conventional treatment and its drawbacks, the prospects of phytotherapy and nanomedicines, are also discussed. The identification of drug targets with the aim of designing inhibitors is also exemplified.
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: Sandra K. Halonen
Publisher:
ISBN:
Category : Science
Languages : en
Pages :
Get Book Here
Book Description
Programmed cell death (PCD) pathways are genetically programmed mechanisms that can trigger the cell to die or commit "cell suicide". There are three major forms of programmed cell death that are now recognized: apoptosis (type I), autophagy (type II) and necrotic cell death or necroptosis (type III). While these cell death processes were once thought to occupy discrete cell states, evidence suggests that apoptosis, autophagy and necrosis are often regulated by similar pathways and share initiator and effector molecules and some subcellular compartments indicating that crosstalk exists between these three main forms of cell death pathways, resulting in a balanced interplay by which the cell decides its fate. PCD pathways have important roles in many cellular processes such as development and oncogenic transformation, but PCD pathways also play important roles in host defense and elimination of pathogens. Toxoplasma gondii is a microbial pathogen for which programmed cell death pathways are a key part of the host defense. T. gondii is an obligate intracellular protozoan parasite that infects approximately one-third of the world's population. In most immunocompetant individuals, the chronic infection is asymptomatic due to an effective immune response that eliminates active parasite replication. The parasite has evolved immune evasion strategies that enable it to survive and persist long enough in the host however to establish a chronic infection in which the cyst stage persists within neurons in the brain and skeletal muscle in the periphery. T. gondii has evolved multiple mechanisms to resist killing by apoptotic, autophagic and necrotic cell death pathways, and the parasite's manipulation of host PCD pathways plays a crucial role in host-parasite interactions and maintenance of the chronic infection. While most individuals chronically infected with T. gondii are asymptomatic, severe disease can occur in immunocompromised individuals where the infection reactivates from the brain causing severe necrotizing encephalitis, and increasing evidence indicates chronic cerebral toxoplasmosis in some individuals may lead to neuropsychiatric disorders such as schizophrenia and suicidal behavior. This review will focus on the role of PCD pathways in host defense of T. gondii and the parasite manipulation of these PCD pathways. A better understanding of the molecular components underlying the PCD pathways and the parasite manipulation of these pathways may yield new therapeutic targets for treatment of clinical sequelae of cerebral toxoplasmosis.
Author: Steven A. Frank
Publisher: Princeton University Press
ISBN: 9780691095950
Category : Medical
Languages : en
Pages : 364
Get Book Here
Book Description
Publisher Description
Author: Tracey Lamb
Publisher: John Wiley & Sons
ISBN: 1118393333
Category : Science
Languages : en
Pages : 531
Get Book Here
Book Description
Parasitic infections remain a significant cause of morbidity and mortality in the world today. Often endemic in developing countries many parasitic diseases are neglected in terms of research funding and much remains to be understood about parasites and the interactions they have with the immune system. This book examines current knowledge about immune responses to parasitic infections affecting humans, including interactions that occur during co-infections, and how immune responses may be manipulated to develop therapeutic interventions against parasitic infection. For easy reference, the most commonly studied parasites are examined in individual chapters written by investigators at the forefront of their field. An overview of the immune system, as well as introductions to protozoan and helminth parasites, is included to guide background reading. A historical perspective of the field of immunoparasitology acknowledges the contributions of investigators who have been instrumental in developing this field of research.
Author: Christian Tschudi
Publisher: Springer Science & Business Media
ISBN: 9780792378235
Category : Medical
Languages : en
Pages : 360
Get Book Here
Book Description
Biology of Parasitism is based on the Biology of Parasitism Course at the Marine Biological Laboratory in Woods Hole, Massachusetts. Having just celebrated its 20th offering, this Course has distinguished itself as the premier, world-renowned training ground for future generations of parasitologists. The primary goal of the Course is to attract and introduce the very best and most promising young researchers to the many unresolved problems in parasitology and prepare them for their future as independent investigators in the field. The rigorous program combines state-of-the-art laboratory research with a program of visiting lecturers who bring together the most current research in the field. Since at this time there are no academic institutions that have enough depth in parasitology research or teaching faculty to provide up-to-date and state-of-the-art training, the Course has become, and will remain, a global resource for providing intensive education in modern parasitology. Biology of Parasitism is intended to present a snapshot of the content and spirit of the Biology of Parasitism Course. By presenting a series of chapters that reflect the formal lectures that students receive on a daily basis, as well as the approaches used during the laboratory section of the Course, the editors hope to share some of the science that occurs there. One part of the book presents the experimental component of the Course, in particular the subject matter of the four two-week sessions covering Immunology, Biochemistry, Cell Biology and Molecular Biology of protozoan and helminth parasites. As in the Course, the experimental part is complemented by a number of review-like chapters solicited from the large number of speakers who lecture during the Course.
Author: Monica Florin-Christensen
Publisher: Springer
ISBN: 3319701320
Category : Medical
Languages : en
Pages : 439
Get Book Here
Book Description
This book provides an in-depth yet concise overview of the most common and emerging protozoa that cause diseases in both farm animals and companion animals. As outlined in the concise introduction, pathogenic protozoans represent an evolutionary highly diverse and little understood group of disease-causing microorganisms. For each of the featured parasitic unicellular eukaryotes, it discusses the morphology, lifecycle, epidemiology and host-pathogen interactions. In addition, the book highlights the latest developments in diagnostic methods, as well as prevention and treatment strategies. Thorough information on genomes and genetic manipulation strategies for some of the protozoa covered in this book is also included. Infections involving parasitic protozoa can cause productivity losses and/or reduce the quality of life of infected animals. Some infections are zoonotic, posing an on-going public health threat. In most cases, prevention and treatment are either non-existent or need considerable improvement. On the other hand, a great deal of research has recently been conducted on these organisms, yielding valuable new information on their global distribution and revealing the mechanisms of host-pathogen interactions at the molecular level – and essential insights that can be used for the development of new control tools. This book includes extensive information on both basic aspects and recent scientific discoveries on these protozoa and thus constitutes a unique resource for students, veterinarians, and researchers alike.
Author:
Publisher:
ISBN: 9780815332183
Category : Cells
Languages : en
Pages : 0
Get Book Here
Book Description
