MYC and neoplasm: Similarly, out of 12 solid tumor cell lines, 3 cell lines with high c‐Myc protein level were highly sensitive to WBC100 (IC50 ≤ 50 × 10−9m) and 3 cell lines with a medium level of c‐Myc protein were demonstrated moderate sensitivity to WBC100 (100 × 10−9m < IC50< 200 × 10−9m), whereas 6 tumor cells with low levels of c‐Myc were low sensitive (IC50 >200 × 10−9m) (Figure 1B).