Alum adjuvant boosts adaptive immunity by inducing uric acid and activating inflammatory dendritic cells.

Alum adjuvant boosts adaptive immunity by inducing uric acid and activating inflammatory dendritic cells. Research Abstract Details 

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Alum adjuvant boosts adaptive immunity by inducing uric acid and activating inflammatory dendritic cells. Abstract Text:

Alum (aluminum hydroxide) is the most widely used adjuvant in human vaccines, but the mechanism of its adjuvanticity remains unknown. In vitro studies showed no stimulatory effects on dendritic cells (DCs). In the absence of adjuvant, Ag was taken up by lymph node (LN)-resident DCs that acquired soluble Ag via afferent lymphatics, whereas after injection of alum, Ag was taken up, processed, and presented by inflammatory monocytes that migrated from the peritoneum, thus becoming inflammatory DCs that induced a persistent Th2 response. The enhancing effects of alum on both cellular and humoral immunity were completely abolished when CD11c(+) monocytes and DCs were conditionally depleted during immunization. Mechanistically, DC-driven responses were abolished in MyD88-deficient mice and after uricase treatment, implying the induction of uric acid. These findings suggest that alum adjuvant is immunogenic by exploiting "nature's adjuvant," the inflammatory DC through induction of the endogenous danger signal uric acid.

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Alum adjuvant boosts adaptive immunity by inducing uric acid and activating inflammatory dendritic cells. Journal Published:

PUBLICATION TYPE: Research Support, Non-U.S. Gov

Journal: The Journal of experimental medicine

VOLUME: 205

Page Numbers: 869-82

Journal Abbreviation: J. Exp. Med.

ISSN: 1540-9538

DAY: 24

MONTH: 03

YEAR: 2008

Alum adjuvant boosts adaptive immunity by inducing uric acid and activating inflammatory dendritic cells. Information

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LANGUAGE: eng

NlmUniqueID: 2985109

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Grant and Affiliation Information for Alum adjuvant boosts adaptive immunity by inducing uric acid and activating inflammatory dendritic cells.

AFFILIATION: Department of Pulmonary Medicine, Erasmus University Medical Centre, 3015 GD Rotterdam, Netherlands.

Country: United States

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MEDLINETA: J Exp Med

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