Phagosome neutrality in host defense.

Watts, Colin · Cell · 2006

review · Level V

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Abstract

Activation of proteases in the phagosomes of neutrophils occurs by neutralization of the phagosomal pH by NADPH oxidase. In this issue, Savina et al. (2006) show that dendritic cell phagosomes also recruit NADPH oxidase but with different results. Here, the neutralization of phagosomal pH reduces protease activity, which preserves antigens for crosspresentation on class I MHC molecules.

Medical subject headings