Cyclic di-AMP in host-pathogen interactions.

Cyclic di-AMP in host-pathogen interactions. Curr Opin Microbiol. 2017 Nov 20;41:21-28 Authors: Devaux L, Kaminski PA, Trieu-Cuot P, Firon A Abstract Cyclic di-AMP (c-di-AMP) is a bacterial signaling nucleotide synthesized by several human pathogens. This widespread and specific bacterial product is recognized by infected host cells to trigger an innate immune response. Detection of c-di-AMP in the host cytosol leads primarily to the induction of type I interferon via the STING-cGAS signaling axis, while being also entangled in the activation of the NF-κB pathway. During their long-standing interaction, host and pathogens have co-evolved to control c-di-AMP activation of innate immunity. On the bacterial side, the quantity of c-di-AMP released inside cells allows to manipulate the host response to exacerbate infection by avoiding immune recognition or, at the opposite, by overloading the STING-cGAS pathway. PMID: 29169058 [PubMed - as supplied by publisher]
Source: Current Opinion in Microbiology - Category: Microbiology Authors: Tags: Curr Opin Microbiol Source Type: research