We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Up-Regulation of Glutathione Biosynthesis in NIH3T3 Cells Transformed with the ETV6-NTRK3 Gene Fusion.
- Authors
Su-Jung Kim; Hong-Gyum Kim; Hye-Won Lim; Eun-Hee Park; Chang-Jin Lim
- Abstract
The ETV6-NTRK3 gene fusion, first identified in the chromosomal translocation in congenital fibrosarcoma, encodes a chimeric protein tyrosine kinase with potent transforming activity. ETV6-NTRK3-dependent transformation involves the joint action of NTRK3 signaling pathways, and aberrant cell cycle progression resulting from activation of Mek1 and Akt. The level of glutathione (GSH) was found to be markedly increased in ETV6-NTRK3-transformed NIH3T3 cells. The activities of the two GSH biosynthetic enzymes as well as of glutathione peroxidase, together with their mRNAs, were also higher in the transformed cells. The transformed cells were able to grow in the presence of GSHdepleting agents, whereas the control cells were not. LButhionine-( S,R)-sulfoximine (BSO) inhibited activation of Mek1 and Akt in the transformed NIH3T3 cells. These observations imply that up-regulation of GSH biosynthesis plays a central role in ETV6-NTRK3- induced transformation.
- Publication
Molecules & Cells (Springer Nature), 2005, Vol 19, Issue 1, p131
- ISSN
1016-8478
- Publication type
Article
- DOI
10.1016/s1016-8478(23)13146-3