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CpG-ODNs induces up-regulated expression of chemokine CCL9 in mouse macrophages and microglia

DRS at CSIR-National Institute of Oceanography

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Title CpG-ODNs induces up-regulated expression of chemokine CCL9 in mouse macrophages and microglia
 
Creator Ravindran, C.
Cheng, Y.-C.
Liang, S.-M.
 
Subject microglial cells
oligodeoxynucleotides
Amyloid beta
CpG-ODNs
 
Description Unmethylated CpG oligodeoxynucleotides (CpG-ODNs) interact with Toll-like receptor (TLR) 9 to activate macrophage/microglia in central nervous system (CNS). The potential involvement of the chemokine CCL9 and its receptor CCR1 in the effects of CpG-ODNs on macrophage/microglial cells are investigated. CpG-ODNs enhanced the expression of TLR9 mRNA of RAW264.7 macrophage and BV2 microglia cells time dependently. The expression of CCL9 of macrophages/microglia showed different responsiveness upon stimulation with a variety of CpG-ODN sequences. The CpG-ODNs-mediated induction of CCL9 was TLR9/MyD88 dependent and associated with activation of stress kinases, particularly ERK, p38 MAPK and PI3K. The expression of CCR1 was also significantly increased by CpG-ODNs that increased CCL9 expression. These results reveal the potential involvement of CCL9 and CCR1 in regulation of macrophage and microglial cells by CpG-ODNs and may help improving our understanding about the role of the chemokine/chemokine receptor pairs in macrophage/microglia under physiologic and pathologic conditions
 
Date 2010-04-04T14:19:43Z
2010-04-04T14:19:43Z
2010
 
Type Journal Article
 
Identifier Cellular Immunology, vol.260(2); 113-118
http://drs.nio.org/drs/handle/2264/3573
 
Language en
 
Rights An edited version of this paper was published by Elsevier. Copyright [2010] Elsevier
 
Publisher Elsevier