Title : Silica induces nuclear factor-kappa B activation through tyrosine phosphorylation of I kappa B-alpha in RAW264.7 macrophages.

Pub. Date : 2000 Nov 15

PMID : 11076697






7 Functional Relationships(s)
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1 Silica induces nuclear factor-kappa B activation through tyrosine phosphorylation of I kappa B-alpha in RAW264.7 macrophages. Tyrosine NFKB inhibitor alpha Homo sapiens
2 The question is raised whether PTK stimulation and NF-kappa B activation in silica-stimulated macrophages are directly connected through tyrosine phosphorylation of I kappa B-alpha. Tyrosine NFKB inhibitor alpha Homo sapiens
3 Specific inhibitors of protein tyrosine kinase, such as genistein and tyrophostin AG126, prevented tyrosine phosphorylation of I kappa B-alpha in response to silica. Tyrosine NFKB inhibitor alpha Homo sapiens
4 Antioxidants, such as superoxide dismutase (SOD), N-acetylcysteine (NAC), and pyrrolidine dithiocarbamate (PDTC), blocked tyrosine phosphorylation of I kappa B-alpha induced by silica, suggesting reactive oxygen species (ROS) may be important regulatory molecules in NF-kappa B activation through tyrosine phosphorylation of I kappa B-alpha. Tyrosine NFKB inhibitor alpha Homo sapiens
5 Antioxidants, such as superoxide dismutase (SOD), N-acetylcysteine (NAC), and pyrrolidine dithiocarbamate (PDTC), blocked tyrosine phosphorylation of I kappa B-alpha induced by silica, suggesting reactive oxygen species (ROS) may be important regulatory molecules in NF-kappa B activation through tyrosine phosphorylation of I kappa B-alpha. Tyrosine NFKB inhibitor alpha Homo sapiens
6 Antioxidants, such as superoxide dismutase (SOD), N-acetylcysteine (NAC), and pyrrolidine dithiocarbamate (PDTC), blocked tyrosine phosphorylation of I kappa B-alpha induced by silica, suggesting reactive oxygen species (ROS) may be important regulatory molecules in NF-kappa B activation through tyrosine phosphorylation of I kappa B-alpha. Tyrosine NFKB inhibitor alpha Homo sapiens
7 The results suggest that tyrosine phosphorylation of I kappa B-alpha represents a proteasome proteolytic activity-independent mechanism for NF-kappa B activation that directly couples NF-kappa B to cellular tyrosine kinase in silica-stimulated macrophages. Tyrosine NFKB inhibitor alpha Homo sapiens