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The intestine has several means for maintaining immune homeostasis and for avoiding inflammation despite massive antigenic stimulation by food components and by commensal bacteria residing in the gut mucosa. These mechanisms include physical and biological barriers such as (i) the intestinal epithelial barrier (IEB); (ii) the gut vascular barrier (GVB) and (iii) the mucus layer. In particular, the mucus layer does not simply act as a diffusion barrier but has important dynamic functions that regulate the type of commensal bacteria residing in the inner mucus layer, enabling the passage of food and bacterial products into the gut tissue and systemic circulation. Importantly, the mucosal layer...
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Toxoplasma gondii is an obligate intracellular parasite that can infect all warm-blooded animals, including an estimated ~30% of humans. It can cause severe disease in immune-suppressed individuals and in fetuses as well as blinding chorioretinitis in adults and children. Toxoplasma-innate immune system interactions determine early parasite control and activation of the adaptive immune system by the host and are therefore critical in determining host survival during the acute phase of infection. However, induction of an exaggerated inflammatory response can also lead to pathology. Only the chronic tissue cyst form of Toxoplasma is orally infectious. It is therefore critical for the parasiteâ...
Covering a wide range of rapidly-developing fields of research into parasitic nematodes, this comprehensive volume discusses the genetics, biochemistry and immunology of nematode parasites of humans as well as domestic animals and plants. This fully-updated edition also covers new advances including horizontal gene transfer, immune expulsion mechanisms, genetics of susceptibility in humans, nematode protein structures, role of bacterial symbionts, intrinsic immune response, host immune system modulation, modulation of allergic and autoimmune diseases and the use of parasitic nematodes or their products as therapeutics.
Sudden changes in immunemediated response to Mycobacterium leprae antigen are referred to as leprosy reactions. The reactions manifest as acute inflammatory episodes rather than chronic infectious course. There are mainly two types of leprosy reactions. Type 1 reaction is associated with cellular immunity and particularly with the reaction of T helper 1 (Th1) cells to mycobacterial antigens. This reaction involves exacerbation of old lesions leading to the erythematous appearance. Type 2 reaction or erythema nodosum leprosum (ENL) is associated with humoral immunity. It is characterized by systemic symptoms along with new erythematous subcutaneous nodules.
This volume explores computational vaccine design and the technologies that support it. Chapters have been divided into four parts detailing immunonics and system immunology, databases, prediction of antigenicity and immunogenicity, and computational vaccinology. Written in the format of the highly successful Methods in Molecular Biology series, each chapter includes an introduction to the topic, lists necessary materials and reagents, includes tips on troubleshooting and known pitfalls, and step-by-step, readily reproducible protocols. Authoritative and cutting-edge, Computational Vaccine Design: Methods and Protocols aims to reflect on the rigorous and imaginative use of computational technologies to help catalyze future efforts and to improve global public health through the development of a broad range of novel vaccines.
Advances in Parasitology, Volume 123, the latest release in this ongoing series, includes medical studies of parasites of major influence, along with reviews of more traditional areas, such as zoology, taxonomy, and life history. - Informs and updates on all the latest developments in the field of parasitology - Includes medical studies of parasites of major influence - Features reviews of more traditional areas, such as zoology, taxonomy, and life history which help shape current thinking and applications