Figure 6

Knockdown of PTBP1 expression inhibits in vitro invasiveness of MDA-MB231 cells. (a) Representative pictures showing invasive cells under microscope ( × 40); (b) Quantitation of cell invasiveness expressed as % invasion (see the Materials and Methods for the definition of % invasion; n=3). Error bar: s.e.; *P<0.05; **P<0.01.