Biological Activity
Targapremir-210 (TGP-210) is a potent and selective miR-210 inhibitor. It can inhibits pre-miR-210 processing with high affinity (Kd~200 nM).
in vitro
Targapremir-210 decreases mature miR-210 levels in MDA-MB-231 cells cultured under hypoxic conditions, with an IC
50 of~200 nM.
It (200 nM) induces apoptosis in MDA-MB-231 cells is selective for the hypoxic environment. Targapremir-210 induces apoptosis in cells under hypoxic conditions and does not induce apoptosis in MDA-MB-231 cells cultured in normoxia.
in vivo
Targapremir-210 (100 μL of 200 nM; single ip injection) impedes MDA-MB-231 triple negative breast cancer (TNBC) cells proliferation in vivo. It is able to reach the tumor and sustain for the entire 21-day period, and decreases tumor burden in a TNBC mouse model.
target
IC50: 200 nM (miR-210, in MDA-MB-231 cells).