Microarray of E. coli-infected bone marrow-derived dendritic cells

Dendritic cells (DCs) are critical mediators of host defense against bacteria. The goal of this microarray study was to understand the global transcriptional response of bone marrow-derived dendritic cells (BMDCs) upon exposure to live bacteria, to better understand how DCs orchestrate a host-protective immune response. We found that BMDCs upregulate a number of critical immune-related genes upon exposure to live E. coli. Most notably, the gene encoding hepcidin, a critical regulator of mammalian iron homeostasis, was significantly upregulated in BMDCs upon exposure to live bacteria.

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Bessman NJ, Mathieu JRR, Renassia C, Zhou L, Fung TC, Fernandez KC, Austin C, Moeller JB, Zumerle S, Louis S, Vaulont S, Ajami NJ, Sokol H, Putzel GG, Arvedson T, Sockolow RE, Lakhal-Littleton S, Cloonan SM, Arora M, Peyssonnaux C, Sonnenberg GF