Effects of TREM-1 gene silencing on lipopolysaccharide-induced inflammatory factor secretion from mice macrophage cell lines RAW264.7 / 中国药学杂志
Chinese Pharmaceutical Journal
;
(24): 695-699, 2013.
Article
in Chinese
| WPRIM
| ID: wpr-860394
ABSTRACT
OBJECTIVE:
To investigate the role of TREM-1 in tumor necrosis factor-α (TNF-α) and interleukin-1β (IL-1β) secretion from lipopolysaccharide-induced mice macrophage cell lines RAW264.7.METHODS:
Designing and synthesizing small interfering RNA (siRNA) with high intangerference ratio, then constructing pLKO1.1-puro-TREM-1 The mice macrophage cell lines RAW264.7 were divided into four groups control group (control); lipopolysaccharide group (LPS); empty plasmid group (pLKO1.1) - just transfected with pLKO1.1; interference group (siRNA) - transfected with pLKO1.1-puro-TREM1.24 h after stimulation with LPS, real-time PCR was used to detect the mRNA levels of TREM-1, TNF-α and IL-1β respectively. The concentrations of TNF-α and IL-1β were assayed by ELISA.RESULTS:
In siRNA group, the mRNA levels of TREM-1, TNF-α and IL-1β were decreased significantly (P<0.01) moreover, the concentrations of TNF-α and IL-1β were lower than other groups significantly (P<0.01).CONCLUSION:
Small interfering RNA may reduce TNF-α, IL-1β secretion in LPS-induced macrophage 264.7 through inhibiting the expression of TREM-1 gene.
Full text:
Available
Index:
WPRIM (Western Pacific)
Language:
Chinese
Journal:
Chinese Pharmaceutical Journal
Year:
2013
Type:
Article
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