KDR and lung cancer: For example, Tanshinone IIA exerted antitumor effects by decreasing VEGF/VEGFR2 expression in the human non‐small cell lung cancer A549 cell line and inhibiting its proliferation.17 Tanshinone IIA exhibited significant anti‐viral activity by suppressing HPV oncogenes, which led to inhibition of cervical cancer.18 Tanshinone IIA‐induced apoptosis in KB cells was mediated through the mitochondria‐dependent caspase pathway.