Abstract:
:Sepsis is a major cause of morbidity and mortality in critically ill patients. MD-2 is a 25-kDa lipopolysaccharide (LPS)-binding protein that forms a heterodimer with TLR42, but its regulation in sepsis is not clear. This study aims to investigate the molecular mechanism of regulation of MD-2. Inflammation cytokines in monocytes were analyzed by real-time RT-PCR and ELISA, and it was found that IL-10 was elevated significantly in the monocytes with LPS treatment. And then, when the cells were treated with IL-10, STAT1 was activated in the monocytes using Western blotting. It was also found that STAT1 could enhance MD-2 expression on transcriptional and posttranscriptional levels. Finally, miR-30a was predicted to the molecule that may regulate STAT1 expression. It was verified that STAT1 was a new target gene of miR-30a. miR-30a could inhibit IL-10-induced cytokine release by targeting STAT1-MD-2 in monocytes. In conclusion, this study for the first time demonstrated that miR-30a inhibits MD-2 expression by targeting of STAT1 in human monocytes.
journal_name
Inflammationjournal_title
Inflammationauthors
Wang Y,Li T,Wu B,Liu H,Luo J,Feng D,Shi Ydoi
10.1007/s10753-014-9922-1subject
Has Abstractpub_date
2014-12-01 00:00:00pages
1903-11issue
6eissn
0360-3997issn
1573-2576journal_volume
37pub_type
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