Immune-Dependent Control of Growth of Independent Ptgs1/Ptgs2−/− Clones, Related to Figure 4
(A) WT or Rag1−/− mice were inoculated with 105 control or two independent Ptgs1/Ptgs2−/− BrafV600E melanoma cell lines (sgRNAs2 and sgRNAs3) generated using two combinations of sgRNAs targeting Ptgs1 and Ptgs2 that are different from the combination used to generate the Ptgs1/Ptgs2−/− BrafV600E cells used in Figures 2, 3, 4, and 5 (sgRNAs 1). Tumor growth is presented as average tumor diameters ± SEM of three to five mice per group.
(B) The proliferative capacity of the three Ptgs1/Ptgs2−/− BrafV600E melanoma cell lines used in this study (sgRNAs 1, sgRNAs 2 and sgRNAs 3) was compared to that of control COX-expressing BrafV600E cells. The metabolic activity of the cells 72 hr after culture of the indicated number of cells was determined using a non-radioactive cell proliferation assay.