PMID- 23430108 OWN - NLM STAT- MEDLINE DCOM- 20130628 LR - 20211108 IS - 1528-0020 (Electronic) IS - 0006-4971 (Linking) VI - 121 IP - 15 DP - 2013 Apr 11 TI - Aryl hydrocarbon receptor contributes to the MEK/ERK-dependent maintenance of the immature state of human dendritic cells. PG - e108-17 LID - 10.1182/blood-2012-07-445106 [doi] AB - Dendritic cells (DCs) promote tolerance or immunity depending on their maturation state, which is enhanced or accelerated upon MEK-ERK signaling pathway inhibition. We have determined the contribution of MEK-ERK activation to the profile of gene expression of human immature monocyte-derived dendritic cells (MDDCs) and peripheral blood myeloid DCs. ERK inhibition altered the expression of genes that mediate Chemokine (C-C motif) ligand 19 (CCL19)-directed migration (CCR7) and low-density lipoprotein (LDL) binding (CD36, SCARB1, OLR1, CXCL16) by immature DCs. In addition, ERK upregulated CCL2 expression while impairing the expression of DC maturation markers (RUNX3, ITGB7, IDO1). MEK-ERK-regulated genes exhibited an overrepresentation of cognate sequences for the aryl hydrocarbon receptor (AhR) transcription factor, whose transcriptional and DNA-binding activities increased in MDDCs upon exposure to the MEK1/2 inhibitor U0126. Therefore, the MEK-ERK signaling pathway regulates antigen capture, lymph node homing, and acquisition of maturation-associated genes, and its contribution to the maintenance of the immature state of MDDCs and myeloid DCs is partly dependent on the activity of AhR. Since pharmacologic modulation of the MEK-ERK signaling pathway has been proposed as a potential therapeutic strategy for cancer, our findings indicate that ERK inhibitors might influence antitumor responses through regulation of critical DC effector functions. FAU - Aguilera-Montilla, Noemi AU - Aguilera-Montilla N AD - Centro de Investigaciones Biologicas, Consejo Superior de Investigaciones Cientificas (CSIC), Madrid, Spain. FAU - Chamorro, Sonia AU - Chamorro S FAU - Nieto, Concha AU - Nieto C FAU - Sanchez-Cabo, Fatima AU - Sanchez-Cabo F FAU - Dopazo, Ana AU - Dopazo A FAU - Fernandez-Salguero, Pedro Maria AU - Fernandez-Salguero PM FAU - Rodriguez-Fernandez, Jose Luis AU - Rodriguez-Fernandez JL FAU - Pello, Oscar M AU - Pello OM FAU - Andres, Vicente AU - Andres V FAU - Cuenda, Ana AU - Cuenda A FAU - Alonso, Barbara AU - Alonso B FAU - Dominguez-Soto, Angeles AU - Dominguez-Soto A FAU - Sanchez-Ramon, Silvia AU - Sanchez-Ramon S FAU - Corbi, Angel L AU - Corbi AL LA - eng SI - GEO/GSE39745 PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20130221 PL - United States TA - Blood JT - Blood JID - 7603509 RN - 0 (Butadienes) RN - 0 (CCL2 protein, human) RN - 0 (Chemokine CCL2) RN - 0 (Core Binding Factor Alpha 3 Subunit) RN - 0 (Enzyme Inhibitors) RN - 0 (Flavonoids) RN - 0 (IDO1 protein, human) RN - 0 (Indoleamine-Pyrrole 2,3,-Dioxygenase) RN - 0 (Lipopolysaccharides) RN - 0 (Nitriles) RN - 0 (Polychlorinated Dibenzodioxins) RN - 0 (Receptors, Aryl Hydrocarbon) RN - 0 (Receptors, CCR7) RN - 0 (Runx3 protein, human) RN - 0 (U 0126) RN - EC 2.7.11.24 (MAPK1 protein, human) RN - EC 2.7.11.24 (Mitogen-Activated Protein Kinase 1) RN - EC 2.7.11.24 (Mitogen-Activated Protein Kinase 3) RN - SJE1IO5E3I (2-(2-amino-3-methoxyphenyl)-4H-1-benzopyran-4-one) SB - IM MH - Blotting, Western MH - Butadienes/pharmacology MH - Cells, Cultured MH - Chemokine CCL2/genetics/metabolism MH - Core Binding Factor Alpha 3 Subunit/genetics/metabolism MH - Dendritic Cells/drug effects/*metabolism MH - Enzyme Inhibitors/pharmacology MH - Flavonoids/pharmacology MH - Gene Expression/drug effects MH - Gene Expression Profiling MH - Hep G2 Cells MH - Humans MH - Indoleamine-Pyrrole 2,3,-Dioxygenase/genetics/metabolism MH - Lipopolysaccharides/pharmacology MH - MAP Kinase Signaling System/drug effects MH - Mitogen-Activated Protein Kinase 1/antagonists & inhibitors/genetics/*metabolism MH - Mitogen-Activated Protein Kinase 3/antagonists & inhibitors/genetics/*metabolism MH - Monocytes/drug effects/metabolism MH - Nitriles/pharmacology MH - Oligonucleotide Array Sequence Analysis MH - Polychlorinated Dibenzodioxins/pharmacology MH - Receptors, Aryl Hydrocarbon/genetics/*metabolism MH - Receptors, CCR7/genetics/metabolism EDAT- 2013/02/23 06:00 MHDA- 2013/07/03 06:00 CRDT- 2013/02/23 06:00 PHST- 2013/02/23 06:00 [entrez] PHST- 2013/02/23 06:00 [pubmed] PHST- 2013/07/03 06:00 [medline] AID - S0006-4971(20)49822-2 [pii] AID - 10.1182/blood-2012-07-445106 [doi] PST - ppublish SO - Blood. 2013 Apr 11;121(15):e108-17. doi: 10.1182/blood-2012-07-445106. Epub 2013 Feb 21.