Transcriptomics

Dataset Information

41

Gene expression profiling of mouse splenic Dendritic cells subsets


ABSTRACT: We describe a novel subset of CD8+ DCs in lymphoid organs of naïve mice characterized by expression of the CX3CR1 chemokine receptor. CX3CR1+CD8+ DCs lack hallmarks of classical CD8+ DCs, including IL12 secretion, the capacity to cross-present antigen and their developmental independence of the transcriptional factor BatF3. Gene expression profiling showed that CX3CR1+CD8+ DCs resemble CD8- cDCs. The microarray analysis further revealed a unique plasmacytoid DC (PDC) gene signature of CX3CR1+ CD8+ DCs. A PDC relationship of the cells is further supported by the fact that they harbor characteristic D-J immunoglobulin gene rearrangements and that development of CX3CR1+CD8+ DCs requires E2-2, the critical transcriptional regulator of PDCs. Thus, CX3CR1+ CD8+ DCs represent a unique DC subset, related to but distinct from PDCs. After collagenase D digestion, spleens from Cx3cr1gfp/+ C57BL/6 mice were enriched for CD11c+ cells by magnetic separation according to the manufacturer’s protocol (MiltenyiBiotec GmbH). Splenic CD11chi cells were isolated using the FACS ARIA high-speed sorter (Becton-Dickinson). Total RNA was extracted and subjected to gene expression profiling using the Mouse Genome 430.2 Affymetrix GeneChip

ORGANISM(S): Mus musculus  

SUBMITTER: Tal Birnberg  Kanako L Lewis   Jan Buer   Liat Bar-On   Kenneth M Murphy   Boris Reizis   Steffen Jung   Dunja Bruder    

PROVIDER: E-GEOD-23212 | ArrayExpress | 2012-03-27

SECONDARY ACCESSION(S): GSE23212PRJNA131315

REPOSITORIES: GEO, ArrayExpress

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Publications

CX3CR1+ CD8alpha+ dendritic cells are a steady-state population related to plasmacytoid dendritic cells.

Bar-On Liat L   Birnberg Tal T   Lewis Kanako L KL   Edelson Brian T BT   Bruder Dunja D   Hildner Kai K   Buer Jan J   Murphy Kenneth M KM   Reizis Boris B   Jung Steffen S  

Proceedings of the National Academy of Sciences of the United States of America 20100802 33


Lymphoid organs are characterized by a complex network of phenotypically distinct dendritic cells (DC) with potentially unique roles in pathogen recognition and immunostimulation. Classical DC (cDC) include two major subsets distinguished in the mouse by the expression of CD8alpha. Here we describe a subset of CD8alpha(+) DC in lymphoid organs of naïve mice characterized by expression of the CX(3)CR1 chemokine receptor. CX(3)CR1(+) CD8alpha(+) DC lack hallmarks of classical CD8alpha(+) DC, inclu  ...[more]

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