Title : [Effect of the antioxidants on NO-dependent induction of heme oxigenase 1 gene in U937 monocytes].

Pub. Date : 2005 Jan-Feb

PMID : 15773552






5 Functional Relationships(s)
Download
Sentence
Compound Name
Protein Name
Organism
1 Previously it was shown that thiol antioxidants are potent inhibitors of the NO-dependent induction of heme oxygenase 1 (HOX-1) gene. Sulfhydryl Compounds heme oxygenase 1 Homo sapiens
2 Previously it was shown that thiol antioxidants are potent inhibitors of the NO-dependent induction of heme oxygenase 1 (HOX-1) gene. Sulfhydryl Compounds heme oxygenase 1 Homo sapiens
3 However, the mechanism of HOX-1 gene down-regulation by thiol antioxidants and underlying signaling pathway remain unclear. Sulfhydryl Compounds heme oxygenase 1 Homo sapiens
4 In this study we have examined, whether the scavenging of reactive oxygen and reactive nitrogen species (ROS and RNS) is the major cause for thiol-mediated suppression of the HOX-1 induction by NO. Sulfhydryl Compounds heme oxygenase 1 Homo sapiens
5 Then, in order to determine, whether RNS scavenging is implicated in the HOX-1 down-regulation by thiol antioxidants, we took advantage of the capacity of suboptimal concentrations of the NO scavenger PTIO (2-phenyl-4,4,5,5-tetramethylimidazole-1-oxyl-3-oxide) to oxidize NO to nitrosating species. Sulfhydryl Compounds heme oxygenase 1 Homo sapiens