Title : Epidermal growth factor receptor exposed to cigarette smoke is aberrantly activated and undergoes perinuclear trafficking.

Pub. Date : 2008 Mar

PMID : 17971399






2 Functional Relationships(s)
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1 Exposure to hydrogen peroxide (H2O2), one of the reactive oxidants in the gas phase of cigarette smoke (CS), induces aberrant phosphorylation of the epidermal growth factor receptor (EGFR), resulting in the lack of ubiquitination by c-Cbl, and impaired degradation. Cesium Cbl proto-oncogene Homo sapiens
2 We found that exposure of human airway epithelial cells to CS, as with exposure to H2O2, not only results in an increase in EGFR activation over time, but the EGFR activated by H2O2 or CS is neither ubiquitinated nor subsequently degraded due to its inability to bind the E3 ubiquitin ligase, c-Cbl, either directly or indirectly via the Grb2 adapter protein. Cesium Cbl proto-oncogene Homo sapiens