cancer is not satisfactory. One of the reasons of this dissatisfaction is that subsets of cells in
tumors which referred as cancer stem cells (CSCs) show and/or gain resistance to therapies.
Thus, compounds that target CSCs are urgently needed. Since some are already used in the
clinic, natural products have great potential for further development as anti cancer drugs.
The aim of this study is to investigate the cytotoxic activity of tingenin b (or 22β …