Louis Boon

TL;DR: The sole application of the innate TLR7/8 ligand IMQ rapidly induces a dermatitis closely resembling human psoriasis, critically dependent on the IL-23/IL-17 axis.

TL;DR: It is found that IDO was involved in intracellular signaling events responsible for the self-amplification and maintenance of a stably regulatory phenotype in pDCs and has a tonic, nonenzymic function that contributes to TGF-β-driven tolerance in noninflammatory contexts.

TL;DR: It was found that a first exposure of mice to LPS activated the ligand-operated transcription factor aryl hydrocarbon receptor and the hepatic enzyme tryptophan 2,3-dioxygenase, which provided an activating ligand to the former, to downregulate early inflammatory gene expression, pointing to a role for AhR in contributing to host fitness.

TL;DR: It is shown that reverse signaling through GITRL after engagement by soluble GITR initiates the immunoregulatory pathway of tryptophan catabolism in mouse plasmacytoid dendritic cells, by means of noncanonical NF-κB–dependent induction of indoleamine 2,3-dioxygenase (IDO).

TL;DR: The findings suggest that during MS and EAE, modulation of T cell reactivity against brain-derived Ags also takes place in cervical LN and not necessarily inside the brain, thereby circumventing the blood-brain barrier.