Title : Arsenite induces endothelial cytotoxicity by down-regulation of vascular endothelial nitric oxide synthase.

Pub. Date : 2005 Nov 1

PMID : 16239170






4 Functional Relationships(s)
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1 In our present study, we investigated the effect of arsenite on Akt1 and eNOS and its involvement in cytotoxicity of vascular endothelial cells. arsenite AKT serine/threonine kinase 1 Homo sapiens
2 Our study demonstrated that arsenite decreased the protein levels of both Akt1 and eNOS accompanied with increased levels of ubiquitination of total cell lysates. arsenite AKT serine/threonine kinase 1 Homo sapiens
3 We found that inhibition of the ubiquitin-proteasome pathway by MG-132 could partially protect Akt1 and eNOS from degradation by arsenite together with a proportional protection from the arsenite-induced cytoxicity. arsenite AKT serine/threonine kinase 1 Homo sapiens
4 Our study indicated that endothelial eNOS activity could be attenuated by arsenite via the ubiquitin-proteasome-mediated degradation of Akt1/eNOS as well as via direct inhibition of eNOS activity. arsenite AKT serine/threonine kinase 1 Homo sapiens