نتایج جستجو برای: monophosphoryl lipid a

تعداد نتایج: 13481193  

Journal: :The Journal of biological chemistry 1991
R Y Hampton C R Raetz

Lipopolysaccharide (LPS) is a Gram-negative bacterial glycolipid that is believed to cause, by virtue of its stimulatory actions on macrophages and other eukaryotic cells, the life-threatening symptoms associated with Gram-negative infections. Macrophages both respond to and catabolically deactivate LPS. The lipid A moiety of LPS is responsible for the stimulatory actions of LPS on macrophages....

Journal: :Journal of immunology 2010
Vanitha S Raman Ajay Bhatia Alex Picone Jacqueline Whittle Hilton R Bailor Joanne O'Donnell Sowmya Pattabhi Jeffrey A Guderian Raodoh Mohamath Malcolm S Duthie Steven G Reed

Therapy of intracellular pathogens can be complicated by drug toxicity, drug resistance, and the need for prolonged treatment regimens. One approach that has shown promise is immunotherapy. Leishmaniasis, a vector-borne disease ranked among the six most important tropical infectious diseases by the World Health Organization, has been treated clinically with crude or defined vaccine preparations...

Journal: :Journal of immunology 2009
Elena Yu Enioutina Diana Bareyan Raymond A Daynes

The addition of monophosphoryl lipid A, a minimally toxic derivative of LPS, to nonmucosally administered vaccines induced both systemic and mucosal immune responses to coadministered Ags. This was dependent on an up-regulated expression of 1alpha-hydroxylase (CYP27B1, 1alphaOHase), the enzyme that converts 25-hydroxycholecalciferol, a circulating inactive metabolite of vitamin D(3), into 1,25(...

Journal: :FASEB journal : official publication of the Federation of American Societies for Experimental Biology 2015
Tammy T Chang Sandra M Spurlock Tara Lynne T Candelario S Marlene Grenon Millie Hughes-Fulford

The health risks of a dysregulated immune response during spaceflight are important to understand as plans emerge for humans to embark on long-term space travel to Mars. In this first-of-its-kind study, we used adoptive transfer of T-cell receptor transgenic OT-II CD4 T cells to track an in vivo antigen-specific immune response that was induced during the course of spaceflight. Experimental mic...

Journal: :Infection and immunity 2011
Christopher D Romero Tushar K Varma Jason B Hobbs Aimee Reyes Brandon Driver Edward R Sherwood

Monophosphoryl lipid A (MPLA) is a Toll-like receptor 4 (TLR4) agonist that is currently used as a vaccine adjuvant in humans. In this study, we evaluated the effect of MPLA treatment on the innate immune response to systemic bacterial infections in mice. Mice treated with MPLA after burn injury showed improved survival and less local and systemic dissemination of bacteria in a model of Pseudom...

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