• Corpus ID: 40683360

Heme oxygenase-1 induction through p 38 MAPK / Nrf 2 activation by ethanol extract of Artemisia capillaries inhibits LPS-activated iNOS , COX-2 , and HMGB 1 in RAW 264 . 7 cells

@inproceedings{Kim2013HemeOI,
  title={Heme oxygenase-1 induction through p 38 MAPK / Nrf 2 activation by ethanol extract of Artemisia capillaries inhibits LPS-activated iNOS , COX-2 , and HMGB 1 in RAW 264 . 7 cells},
  author={Hee Sook Kim and Eun Jung Park and Young min Kim and Sang Won Park and Hye Jung Kim and Jae Heun Lee and Ki Churl Chang},
  year={2013}
}
Heme oxygenase-1 (HO-1) negatively regulates inflammatory cytokines in lipopolysaccharide (LPS)-activated RAW 264.7 cells. The purpose of the study was to know whether anti-inflammatory effect of the extract of Artemisia capillaries (EAC) is responsible for HO-1 protein expression in RAW264.7 cells. EAC increased HO-1 expression in a time and concentration-dependent manner and inhibited the expression of iNOS (NO) and COX-2 (PGE2), and release of high mobility group box 1 (HMGB1) in LPS… 

Figures from this paper

Ethyl pyruvate induces heme oxygenase-1 through p38 mitogen-activated protein kinase activation by depletion of glutathione in RAW 264.7 cells and improves survival in septic animals.

It is concluded that EP inhibits proinflammatory response to LPS in macrophages and increases survival in CLP-induced septic mice by upregulation of HO-1 level, in which p38 MAPK and Nrf2 play an important role.

Heme-Oxygenase-1 Induction and Carbon Monoxide-Releasing Molecule Inhibit Lipopolysaccharide (LPS)-Induced High-Mobility Group Box 1 Release in Vitro and Improve Survival of Mice in LPS- and Cecal Ligation and Puncture-Induced Sepsis Model in Vivo

It is concluded that HO-1-derived CO reduces HMGB1 release in L PS-activated cells and LPS- or CLP-induced animal model of sepsis.

Role of NF-kappaB and p38 MAP kinase signaling pathways in the lipopolysaccharide-dependent activation of heme oxygenase-1 gene expression.

It is shown that LPS induced the endogenous HO-1 gene expression in RAW264.7 monocytic cells and suggests that the NF-kappaB and p38 MAPK signaling pathways mediate the LPS-dependent induction of HO- 1 gene expression via DNA sequences of the proximal promoter region.

Role of the Cyclic AMP-Protein Kinase A Pathway in Lipopolysaccharide-induced Nitric Oxide Synthase Expression in RAW 264.7 Macrophages

It is suggested that 6 h of treatment with LPS increases intracellular cAMP levels via COX-2 induction and prostaglandin E2 production, resulting in PKA activation, NF-κB activation, iNOS expression, and NO production.

Prevention of the expression of inducible nitric oxide synthase by a novel positive inotropic agent, YS 49, in rat vascular smooth muscle and RAW 264.7 macrophages

It is suggested that YS 49 suppresses iNOS gene expression induced by LPS and/or cytokines in RAVSMC and RAW 264.7 cells, which could therefore be beneficial in septic shock and other diseases associated with iN OS over‐expression.

High-mobility group box 1 contributes to lethality of endotoxemia in heme oxygenase-1-deficient mice.

Exaggerated circulating levels of HMGB1 contribute to endotoxin-induced mortality in the absence of heme oxygenase (HO)-1, which is suggested to contribute to the pathobiology of endotoxemia.

Parallel Induction of Heme Oxygenase-1 and Chemoprotective Phase 2 Enzymes by Electrophiles and Antioxidants: Regulation by Upstream Antioxidant-Responsive Elements (ARE)

Findings support the importance of heme oxygenase-1 as a protector against oxidative damage and suggest that HO-1 induction is part of a more generalized protective cellular response that involves phase 2 enzymes.

Glycyrrhizin Prevents Liver Injury by Inhibition of High-Mobility Group Box 1 Production by Kupffer Cells after Ischemia-Reperfusion in Rats

Glycyrrhizin has the therapeutic potential to prevent warm I/R-induced injury during hepato-biliary surgery, and treatment with lipo-MDP significantly blunted serum HMGB1 levels and prevented liver injury after I/ R.