Control of RelB during dendritic cell activation integrates canonical and noncanonical NF-κB pathways.

TitleControl of RelB during dendritic cell activation integrates canonical and noncanonical NF-κB pathways.
Publication TypeJournal Article
Year of Publication2012
AuthorsShih VF-S, Davis-Turak J, Macal M, Huang JQ, Ponomarenko J, Kearns JD, Yu T, Fagerlund R, Asagiri M, Zuniga EI, Hoffmann A
JournalNat Immunol
Volume13
Issue12
Pagination1162-70
Date Published2012 Dec
ISSN1529-2916
Abstract

The NF-κB protein RelB controls dendritic cell (DC) maturation and may be targeted therapeutically to manipulate T cell responses in disease. Here we report that RelB promoted DC activation not as the expected RelB-p52 effector of the noncanonical NF-κB pathway, but as a RelB-p50 dimer regulated by canonical IκBs, IκBα and IκBɛ. IκB control of RelB minimized spontaneous maturation but enabled rapid pathogen-responsive maturation. Computational modeling of the NF-κB signaling module identified control points of this unexpected cell type-specific regulation. Fibroblasts that we engineered accordingly showed DC-like RelB control. Canonical pathway control of RelB regulated pathogen-responsive gene expression programs. This work illustrates the potential utility of systems analyses in guiding the development of combination therapeutics for modulating DC-dependent T cell responses.

DOI10.1038/ni.2446
PubMed URLhttp://www.ncbi.nlm.nih.gov/pubmed/23086447?dopt=Abstract
PMCPMC3634611
Alternate JournalNat. Immunol.
PubMed ID23086447