نتایج جستجو برای: mucosal defense
تعداد نتایج: 112516 فیلتر نتایج به سال:
HIV infection is associated with immune dysfunction, perturbation of immune-cell subsets and opportunistic infections. CD161++ CD8+ T cells are a tissue-infiltrating population that produce IL17A, IL22, IFN, and TNFα, cytokines important in mucosal immunity. In adults they dominantly express the semi-invariant TCR Vα7.2, the canonical feature of mucosal associated invariant T (MAIT) cells and h...
Previous studies have suggested that endogenous protease inhibitors may participate in the mucosal host defense. Antileukoprotease (ALP) is an important protease inhibitor found on various mucosal surfaces, including those of the respiratory and genital tracts. This study reports on the antimicrobial activity of recombinant (r) ALP toward the human fungal pathogens Aspergillus fumigatus and Can...
Candida species are medically significant yeast that can cause different infection ranging from mild mucosal to disseminated infection. Invasive and sever mucosal infections are often life threatening disorders, especially in immunocompromised hosts due to immunodeficiency either in adaptive or innate immunity which are susceptible to candidiasis. Nevertheless, not all of them are susceptible t...
It has been shown that pathogen-specific secretory IgA (SIgA) antibody (Ab) is the major player at mucosal surfaces for host defense. However, alterations in the mucosal immune system occur in advanced aging, which results in a failure of induction of SIgA Abs for the protection from infectious diseases. Signs of mucosal senescence first appear in the gut immune system. Further, changes in the ...
Gastric mucosal integrity can be influenced both by peripheral and central mechanisms. In the last decades the peripheral mechanisms of gastric mucosal defense have been intensively studied, and many details have been clarified. Some of these results have served as a basis for the development of new strategies, therapeutic targets in the treatment of gastric mucosal lesions. On the other hand, ...
Mucosal epithelial tissues are exposed to high numbers of microbes, including commensal fungi, and are able to distinguish between those that are avirulent and those that cause disease. Epithelial cells have evolved multiple mechanisms to defend against colonization and invasion by Candida species. The interplay between mucosal epithelial tissues and immune cells is key for control and clearanc...
The gastric mucosa is constantly exposed to conditions that would normally be damaging to living cells. A complex defensive system has evolved that involves multiple mechanisms arranged in a laminar fashion, that as a whole constitute the gastric mucosal barrier to acid. As antisecretory therapy becomes perfected, more attention has been focused on these defensive components of the gastric muco...
Nano and Microparticles as Potential Oral Vaccine Carriers and Adjuvants Against Infectious Diseases
Mucosal surfaces are the first site of infection for most infectious diseases and oral vaccination can provide protection as line defense. Unlike systemic administration, immunization stimulate cellular humoral immune responses at both mucosal levels to induce broad-spectrum long-lasting immunity. Therefore, design a successful vaccine, it is essential well responses. Successful vaccines need o...
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