WEE1 and neoplasm: Green tea used along with curcumin as a chemopreventive agent shows synergistic growth inhibitory effects and superior anti-tumor effects on induced carcinogenesis from the aspect of their apoptotic, anti-proliferative, and anti-angiogenic action on tumor cells by suppressing a variety of cellular signaling pathways, enzymatic activity, and protein kinases using flow cytometry, immunofluorescence, and immunohistochemical assays.