Exposure to lanthanum compound diminishes LPS-induced inflammation-associated gene expression: involvements of PKC and NF-κB signaling pathways

Fei Guo; Yuanlei Lou; Nianhua Feng; Guohui Li; An Xie; Xueming Huang; Yang Wang

doi:10.1007/s10534-010-9327-z

Abstract

Lanthanum chloride, a rare earth compound, possesses antibacterial and cellular immunity regulating properties. However, the underlying molecular mechanisms remain largely unknown. In this study, we examined the effects of lanthanum chloride on the production of nitric oxide (NO) and tumor necrosis factor-alpha (TNF-alpha), the expression of inducible NO synthase (iNOS) and TNF-alpha in RAW 264.7 cells, a mouse macrophage cell line. We found that the LPS-elicited excessive production of NO and TNF-alpha in RAW 264.7 cells was inhibited significantly in the presence of lanthanum chloride, and the attenuation of iNOS and TNF-alpha occurred at mRNA level. Furthermore, the possible signaling components affected by lanthanum chloride in the pathway that lead to LPS-induced iNOS and TNF-alpha expression were explored. The results indicated the involvements of PKC/Ca(2+) and NF-kappaB in the attenuation of NO and pro-inflammatory cytokine production by lanthanum chloride. Our observations suggest a possible therapeutic application of this agent for treating inflammatory diseases.

Keywords

LanthanumTumor necrosis factor alphaProtein kinase CNitric oxideSignal transductionChemistryInflammationNF-κBNitric oxide synthaseGene expressionChlorideCytokineCell biologyBiochemistryBiologyImmunologyEnzymeGeneInorganic chemistry

MeSH Terms

AnimalsCalciumCell LineGene ExpressionInflammationLanthanumLipopolysaccharidesMacrophagesMiceNF-kappa BNitric OxideNitric Oxide Synthase Type IIProtein Kinase CSignal TransductionTumor Necrosis Factor-alpha

Affiliated Institutions

Nanchang University CN

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Publication Info

Year: 2010
Type: article
Volume: 23
Issue: 4
Pages: 669-680
Citations: 19
Access: Closed

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APA Style

                            
                                
                                    Fei Guo, 
                                
                                    Yuanlei Lou, 
                                
                                    Nianhua Feng
                                
                                et al.
                            
                            (2010). 
                            Exposure to lanthanum compound diminishes LPS-induced inflammation-associated gene expression: involvements of PKC and NF-κB signaling pathways. 
                            BioMetals
                            , 23
                            (4)
                            , 669-680.
                            https://doi.org/10.1007/s10534-010-9327-z
                        

Identifiers

DOI: 10.1007/s10534-010-9327-z
PMID: 20349204

Data Quality

Data completeness: 86%