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Full-Text Articles in Medical Toxicology
The Role Of Neural Precursor Cell Expressed Developmentally Down-Regulated Protein 9 In Enhanced Aggressiveness Of Hexavalent Chromium Transformed Bronchial Epithelial Cells, Peter Van Wie
Theses and Dissertations--Toxicology and Cancer Biology
Hexavalent chromium (Cr(VI)) is classified as a confirmed human carcinogen by the International Agency for Research and Cancer (IARC) and by the U.S. Environmental Protection Agency (EPA). Chronic exposure to (Cr(VI)) causes malignant cell transformation in human bronchial epithelial BEAS-2B cells. These Cr(VI)-transformed cells exhibit a highly aggressive phenotype including increased migration, invasion, and angiogenesis. The Cas family protein neuronal precursor developmentally down regulated protein 9 (NEDD9/Cas-L/HEF1) was dramatically overexpressed in Cr(VI)-transformed cells compared to normal BEAS-2B cells. Knockdown of NEDD9 by its shRNA reduced migration and invasion in vitro measured by migration and invasion assays. shNEDD9 reduced tumor formation …