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Lancemaside A from Codonopsis lanceolata modulates the inflammatory responses mediated by monocytes and macrophages
- Source :
- Mediators of Inflammation, Mediators of Inflammation, Vol 2014 (2014)
- Publication Year :
- 2014
-
Abstract
- In this study, we aimed to examine the cellular and molecular mechanisms of lancemaside A fromCodonopsis lanceolata(Campanulaceae) in the inflammatory responses of monocytes (U937 cells) and macrophages (RAW264.7 cells). Lancemaside A significantly suppressed the inflammatory functions of lipopolysaccharide- (LPS-) treated RAW264.7 cells by suppressing the production of nitric oxide (NO), the expression of the NO-producing enzyme inducible NO synthase (iNOS), the upregulation of the costimulatory molecule CD80, and the morphological changes induced by LPS exposure. In addition, lancemaside A diminished the phagocytic activity of RAW264.7 cells and boosted the neutralizing capacity of these cells when treated with the radical generator sodium nitroprusside (SNP). Interestingly, lancemaside A strongly blocked the adhesion activity of RAW264.7 cells to plastic culture plates, inhibited the cell-cell and cell-fibronectin (FN) adhesion of U937 cells that was triggered by treatment with an anti-β1-integrin (CD29) antibody and immobilized FN, respectively. By evaluating the activation of various intracellular signaling pathways and the levels of related nuclear transcription factors, lancemaside A was found to block the activation of inhibitor ofκB kinase (IKK) and p65/nuclear factor- (NF-)κB. Taken together, our findings strongly suggest that the anti-inflammatory function of lancemaside A is the result of its strong antioxidative and IKK/NF-κB inhibitory activities.
- Subjects :
- Lipopolysaccharides
Nitroprusside
Article Subject
Lipopolysaccharide
Cell Survival
Immunology
Inflammation
IκB kinase
Nitric Oxide
behavioral disciplines and activities
Antioxidants
Monocytes
Cell Line
chemistry.chemical_compound
Mice
Phagocytosis
medicine
lcsh:Pathology
Cell Adhesion
Animals
Humans
Codonopsis lanceolata
Cell adhesion
Codonopsis
biology
U937 cell
Integrin beta1
Macrophages
Cell Biology
U937 Cells
Saponins
biology.organism_classification
Cell biology
I-kappa B Kinase
Biochemistry
chemistry
Cell culture
medicine.symptom
CD80
lcsh:RB1-214
Research Article
Subjects
Details
- ISSN :
- 14661861
- Volume :
- 2014
- Database :
- OpenAIRE
- Journal :
- Mediators of inflammation
- Accession number :
- edsair.doi.dedup.....c8d1000f72564204e32493f16f37013f