Response of STF to increasing dose of Ror2 in H441 cells. H441 cells were transfected with pSV-β-gal (Promega, WI), STF, Fzd2 expression construct and increasing doses of Ror2 wild-type (Ror2WT) plasmid, and then treated with conditioned media, L-CM or Wnt3aCM. Equal amounts of DNA and conditioned media were used in each assay. Values of the assays were normalized as in Fig. 5. * indicates p < 0.05 when compared with data of bar 4. ‡ indicates p < 0.05 when compared with data of bar 2.