Anti-tumor effect of synthetic baicalin-rare earth metal complex drugs on SMMC-7721 cells

摘要

Baicalin (BC)-rare earth metal complexes [BMCs (BC-Ce, BC-La, and BC-Y)] were synthesized by a complexation coordination method. A mouse tumor model with SMMC-7721 cells was used to examine BMCs for their anti-tumor activities in vivo. The results show that the three new BMCs, Na3Ce (C21H16O11)(3)center dot 10H(2)O, Na2La (C21H16O11)(2)center dot 8H(2)O, and Na2Y (C21H16O11)(2)center dot 6H(2)O significantly inhibited SMMC-7721 cell proliferation, since the BMCs may induce the tumor apoptosis in a dose-dependent manner through decreasing cell membrane fluidity and mitochondrial membrane potential depolarization, blocking of the cell cycle at the G(2)/M phase, and increasing the expression ofBaxand reducing the expression ofBcl-2. The effectiveness order of these three BCMs was as follows: BC-Ce BC-La BC-Y BC. It is concluded that BC-Ce, BC-La, and BC-Y possess potent anti-tumor effects and may be a novel group of anti-tumor drugs.