LRP6 BP12 and BP34 CM inhibit Wnt signaling. HEK293T/STF cells were
incubated with L cells CM, Wnt3a CM, or Wnt3a CM along with control or LRP6 BP
CM at 37 °C for 16 h. BP12 and BP34 CM contain ∼30 μg of BP12 or
BP34 protein, respectively, quantified by Western blot. Control CM containing
equal amounts of total protein as BP CM was added to cells as negative
control. Values are the average of triple determinations with the S.D.
indicated by error bars. Note that both LRP6 BP12 and BP34 CM
partially inhibit Wnt3a-induced Wnt signaling. **, p <
0.01 compared with control medium.