| http://purl.uniprot.org/citations/14729612 | http://www.w3.org/1999/02/22-rdf-syntax-ns#type | http://purl.uniprot.org/core/Journal_Citation |
| http://purl.uniprot.org/citations/14729612 | http://www.w3.org/2000/01/rdf-schema#comment | "Nickel compounds are a somewhat unique class of carcinogens. Previous studies have demonstrated that NiCl(2) exposure leads to marked induction of hypoxia inducible factor 1 (HIF-1) in human osteosarcoma and BALB/c 3T3 cells, a transcription factor that has been considered to play an important role in tumor promotion and progression. However, the signal transduction pathways leading to HIF-1 induction are not well understood. The present study indicated that exposure of mouse epidermal Cl41 cells to either Ni(3)S(2) or NiCl(2) resulted in activation of phosphatidylinositol 3-kinase (PI-3K), Akt, and p70 S6 kinase (p70(S6k)). Inhibition of PI-3K, Akt, and p70(S6k) by overexpression of a dominant-negative mutant of PI-3K (Deltap85) impaired nickel-induced HIF-1 transactivation. Furthermore, an overexpression of the dominant-negative Akt mutant (Akt-T308A/S473A) blocked nickel-induced Akt phosphorylation and HIF-1 transactivation, whereas inhibition of p70(S6k) activation by pretreatment of cells with rapamycin did not show significant inhibitory effects on HIF-1 transactivation induced by nickel compounds. Consistent with HIF-1 transactivation, inhibition of the PI-3K/Akt pathway by either overexpression of Deltap85 or Akt-T308A/S473A caused dramatic inhibition of Cap43 protein expression induced by nickel compounds, whereas pretreatment of cells with rapamycin did not exhibit inhibition of Cap43 induction. These results demonstrated that nickel compounds induce HIF-1 transactivation and Cap43 protein expression through a PI-3K/Akt-dependent and p70(S6k)-independent pathway. This study should help us understand the signal transduction pathways involved in the carcinogenic effects of nickel compounds."xsd:string |
| http://purl.uniprot.org/citations/14729612 | http://purl.org/dc/terms/identifier | "doi:10.1158/0008-5472.can-03-0737"xsd:string |
| http://purl.uniprot.org/citations/14729612 | http://purl.uniprot.org/core/author | "Davidson G."xsd:string |
| http://purl.uniprot.org/citations/14729612 | http://purl.uniprot.org/core/author | "Huang Y."xsd:string |
| http://purl.uniprot.org/citations/14729612 | http://purl.uniprot.org/core/author | "Li J."xsd:string |
| http://purl.uniprot.org/citations/14729612 | http://purl.uniprot.org/core/author | "Huang C."xsd:string |
| http://purl.uniprot.org/citations/14729612 | http://purl.uniprot.org/core/author | "Shi X."xsd:string |
| http://purl.uniprot.org/citations/14729612 | http://purl.uniprot.org/core/author | "Costa M."xsd:string |
| http://purl.uniprot.org/citations/14729612 | http://purl.uniprot.org/core/author | "Jiang B.H."xsd:string |
| http://purl.uniprot.org/citations/14729612 | http://purl.uniprot.org/core/date | "2004"xsd:gYear |
| http://purl.uniprot.org/citations/14729612 | http://purl.uniprot.org/core/name | "Cancer Res"xsd:string |
| http://purl.uniprot.org/citations/14729612 | http://purl.uniprot.org/core/pages | "94-101"xsd:string |
| http://purl.uniprot.org/citations/14729612 | http://purl.uniprot.org/core/title | "Nickel compounds act through phosphatidylinositol-3-kinase/Akt-dependent, p70(S6k)-independent pathway to induce hypoxia inducible factor transactivation and Cap43 expression in mouse epidermal Cl41 cells."xsd:string |
| http://purl.uniprot.org/citations/14729612 | http://purl.uniprot.org/core/volume | "64"xsd:string |
| http://purl.uniprot.org/citations/14729612 | http://www.w3.org/2004/02/skos/core#exactMatch | http://purl.uniprot.org/pubmed/14729612 |
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