In the article on how FGFR1 expression induces RSK dependency in the March 15, 2009 issue of Cancer Research (1), the second sentence of the “Cell lines and cell culture” section in Materials and Methods should read “Hemagglutinin-tagged mouse iFGFR1 cDNA was subcloned into the pBABE-Puro retroviral vector as described before (8).”

1
Xian W, Pappas L, Pandya D, Selfors LM, Derksen PW, de Bruin M, Gray NS, Jonkers J, Rosen JM, Brugge JS. Fibroblast growth factor receptor 1-transformed mammary epithelial cells are dependent on RSK activity for growth and survival.
Cancer Res
 
2009
;
69
:
2244
–51.
©2009 American Association for Cancer Research.
2009