Abstract

Dendritic Cells Activation of dendritic cells (DCs) by stimuli such as bacterial sensing promotes DC maturation. In contrast to random migratory patterns of immature DCs, mature DCs migrate in a continuous and directional manner. Bretou et al. examined the role of lysosomes in regulating mature DC migration. Release of lysosomal calcium connects DC activation with directional migration. Deletion of a lysosomal calcium channel impaired directional DC migration and DC chemotaxis to lymph nodes. Thus, release of lysosomal calcium links stimulus sensing with DC migration. Sci. Immunol. 2 , eaak9573 (2017).

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