Activated iNKT cells promote memory CD8+ T cell differentiation during viral infection.

Activated iNKT cells promote memory CD8+ T cell differentiation during viral infection.

Blog Article

α-Galactosylceramide (α-GalCer) is the prototypical lipid ligand for invariant NKT cells.Recent studies have proposed that α-GalCer is an effective adjuvant in vaccination against a range Skate Guards of immune challenges, however its mechanism of action has not been completely elucidated.A variety of delivery methods have been examined including pulsing dendritic cells with α-GalCer to optimize the potential of α-GalCer.These methods are currently being used in a variety of clinical trials in patients with advanced cancer but cannot be used in the context of vaccine development against pathogens due to their complexity.

Using a simple delivery method, we evaluated α-GalCer adjuvant properties, using the mouse model for cytomegalovirus (MCMV).We measured several key parameters of the immune response to MCMV, including inflammation, effector, and central memory CD8(+) T cell responses.We found that α-GalCer injection at the time of the infection decreases viral titers, alters the kinetics of the inflammatory response, and promotes both increased frequencies BOSCH GUD15AFF0G Integrated Undercounter Freezer and numbers of virus-specific memory CD8(+) T cells.Overall, our data suggest that iNKT cell activation by α-GalCer promotes the development of long-term protective immunity through increased fitness of central memory CD8(+) T cells, as a consequence of reduced inflammation.