Figure 2.

MMs with high basal Fra-1 expression have also higher CD44 expression. Western blots show constitutive levels of Fra-1 (three bands show different levels of phosphorylation), CD44, and levels of α-Tubulin (control for protein loading) in confluent cells maintained for 24 h in serumless medium or after 4 h with the addition of 10% FBS (columns +).