Transcriptomics

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Gene expression data from Peyer's patch mononuclear phagocyte system


ABSTRACT: Peyer’s patches (PP) are primary inductive sites of mucosal immunity. Defining PP mononuclear phagocyte system (MPS) is thus crucial to understand the initiation of mucosal immune response. We provide a comprehensive analysis of the phenotype, distribution, ontogeny, lifespan, function and transcriptional profile of PP MPS. We show that monocytes give rise to macrophages and to lysozyme-expressing DC (LysoDC) which are both involved in particulate antigen uptake, display strong innate antiviral and antibacterial gene signatures and, upon TLR7 stimulation, secrete IL-6 and TNF but no IL-10. However, unlike macrophages, LysoDC display a rapid renewal rate, strongly express genes of the MHCII presentation pathway and prime naïve helper T cells for IFNg production. Our results show that in PP, at steady state, monocytes generate both LysoDC and macrophages which display distinct features from their adjacent villus counterparts.

ORGANISM(S): Mus musculus

PROVIDER: GSE65514 | GEO | 2015/02/03

SECONDARY ACCESSION(S): PRJNA274259

REPOSITORIES: GEO

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