PMID- 15477228 OWN - NLM STAT- MEDLINE DCOM- 20050418 LR - 20240109 IS - 0953-8178 (Print) IS - 0953-8178 (Linking) VI - 16 IP - 12 DP - 2004 Dec TI - Role of c-Jun N-terminal kinase on lipopolysaccharide induced maturation of human monocyte-derived dendritic cells. PG - 1701-9 AB - Dendritic cells (DCs) are potent antigen-presenting cells that play a pivotal role in the initiation of T cell-dependent immune responses. Immature DCs obtained from peripheral blood CD14+ monocytes by culture with granulocyte macrophage-colony stimulating factor (GM-CSF) and interleukin-4 (IL-4) differentiate into mature DCs upon stimulation with lipopolysaccharide (LPS). At least three families of mitogen-activated protein kinases (MAPKs), that is, extracellular signal-regulated kinases (ERK), c-Jun N-terminal kinases (JNK) and p38 MAPK, are involved in the DC maturation process. We report investigations of the role of JNK in the maturation of human monocyte-derived DCs. SP600125, a specific inhibitor of JNK, inhibited the LPS-induced up-regulation of CD80, CD83, CD86 and CD54, but augmented the up-regulation of HLA-DR. SP600125 slightly inhibited the down-regulation of FITC-dextran uptake during DC maturation. However, SP600125 did not affect the LPS induced up-regulation of allostimulatory capacity of DCs. SP600125 inhibited the release of IL-12 p70 and TNF-alpha from mature DCs. Although autologous T cells primed by the ovalbumin (OVA)-pulsed mature DCs produced IFN-gamma, but not IL-4, OVA-pulsed SP600125-treated mature DCs could initiate IL-4 production from autologous T cells. In contrast, a p38 MAPK inhibitor, SB203580, profoundly inhibited the phenotypic and functional maturation of DCs, while an ERK inhibitor, PD98059, had little or no effect. Taken together, the JNK signaling pathway appears to have a role that is distinct from the p38 MAPK and ERK cascades in the maturation process of DCs, and may be involved in the augmentation of Th2-prone T cell responses when it is suppressed. FAU - Nakahara, Takeshi AU - Nakahara T AD - Department of Dermatology, Graduate School of Medical Sciences, Kyushu University, Japan. nakahara@dermatol.med.kyushu-u.ac.jp FAU - Uchi, Hiroshi AU - Uchi H FAU - Urabe, Kazunori AU - Urabe K FAU - Chen, Qijie AU - Chen Q FAU - Furue, Masutaka AU - Furue M FAU - Moroi, Yoichi AU - Moroi Y LA - eng PT - Journal Article DEP - 20041011 PL - England TA - Int Immunol JT - International immunology JID - 8916182 RN - 0 (Anthracenes) RN - 0 (Antigens, CD) RN - 0 (Cyclic AMP Response Element-Binding Protein) RN - 0 (Dextrans) RN - 0 (Flavonoids) RN - 0 (HLA-DR Antigens) RN - 0 (Imidazoles) RN - 0 (Lipopolysaccharides) RN - 0 (Protein Kinase Inhibitors) RN - 0 (Protein Subunits) RN - 0 (Pyridines) RN - 0 (Tumor Necrosis Factor-alpha) RN - 0 (fluorescein isothiocyanate dextran) RN - 187348-17-0 (Interleukin-12) RN - 1TW30Y2766 (pyrazolanthrone) RN - EC 2.7.11.24 (Extracellular Signal-Regulated MAP Kinases) RN - EC 2.7.11.24 (JNK Mitogen-Activated Protein Kinases) RN - EC 2.7.11.24 (p38 Mitogen-Activated Protein Kinases) RN - I223NX31W9 (Fluorescein-5-isothiocyanate) RN - OU13V1EYWQ (SB 203580) RN - SJE1IO5E3I (2-(2-amino-3-methoxyphenyl)-4H-1-benzopyran-4-one) SB - IM MH - Anthracenes/pharmacology MH - Antigens, CD/metabolism MH - Biological Transport/drug effects MH - Cell Differentiation/drug effects MH - Cells, Cultured MH - Cyclic AMP Response Element-Binding Protein/metabolism MH - Dendritic Cells/*enzymology/immunology MH - Dextrans/metabolism MH - Extracellular Signal-Regulated MAP Kinases/antagonists & inhibitors/physiology MH - Flavonoids/pharmacology MH - Fluorescein-5-isothiocyanate/*analogs & derivatives/metabolism MH - HLA-DR Antigens/metabolism MH - Humans MH - Imidazoles/pharmacology MH - Interleukin-12/metabolism MH - JNK Mitogen-Activated Protein Kinases/antagonists & inhibitors/*physiology MH - Lipopolysaccharides/pharmacology MH - Monocytes/drug effects MH - Phosphorylation MH - Protein Kinase Inhibitors/pharmacology MH - Protein Subunits/metabolism MH - Pyridines/pharmacology MH - Tumor Necrosis Factor-alpha/metabolism MH - Up-Regulation MH - p38 Mitogen-Activated Protein Kinases/antagonists & inhibitors/physiology EDAT- 2004/10/13 09:00 MHDA- 2005/04/19 09:00 CRDT- 2004/10/13 09:00 PHST- 2004/10/13 09:00 [pubmed] PHST- 2005/04/19 09:00 [medline] PHST- 2004/10/13 09:00 [entrez] AID - dxh171 [pii] AID - 10.1093/intimm/dxh171 [doi] PST - ppublish SO - Int Immunol. 2004 Dec;16(12):1701-9. doi: 10.1093/intimm/dxh171. Epub 2004 Oct 11.