Icaritin

Flavonoids

NP1909

118525-40-9

Icaritin

Icaritin is unable to promote proliferation, migration and tube-like structure formation by human umbilical vein endothelial cells (HUVECs) in vitro. Icaritin potently inhibited proliferation of K562 cells (IC50 was 8 μM) and primary CML cells (IC50 was 13.4 μM for CML-CP and 18 μM for CML-BC), induced CML cells apoptosis and promoted the erythroid differentiation of K562 cells with time-dependent manner. Furthermore, Icaritin was able to suppress the growth of primary CD34+ leukemia cells (CML) and Imatinib-resistant cells, and to induce apoptosis. Icaritin strongly inhibited the growth of breast cancer MDA-MB-453 and MCF7 cells. At concentrations of 2-3 μM, icaritin induced cell cycle arrest at the G(2)/M phase accompanied by a down-regulation of the expression levels of the G(2)/M regulatory proteins such as cyclinB, cdc2 and cdc25C. Icaritin at concentrations of 4-5 μM, however, induced apoptotic cell death characterized by the accumulation of the annexin V- and propidium iodide-positive cells, cleavage of poly ADP-ribose polymerase (PARP) and down-regulation of the Bcl-2 expression. In mouse leukemia model, Icaritin could prolong lifespan of NOD-SCID nude mice inoculated with K562 cells as effective as Imatinib without suppression of bone marrow. Icaritin could up-regulate phospho-JNK or phospho-C-Jun and down-regulate phospho-ERK, phospho-P-38, Jak-2, phospho-Stat3 and phospho-Akt expression with dose- or time-dependent manner.

Anhydroicaritin; 3,5,7-Trihydroxy-2-(4-methoxyphenyl)-8-(3-methyl-2-buten-1-yl)-4H-1-benzopyran-4-one; 3-hydroxy-7-o-beta-glucose-8-prenyl-4''-methoxy Chrysin

3,5,7-trihydroxy-2-(4-methoxyphenyl)-8-(3-methylbut-2-enyl)chromen-4-one

368.38

C21H20O6

CC(=CCC1=C(C=C(C2=C1OC(=C(C2=O)O)C3=CC=C(C=C3)OC)O)O)C

InChI=1S/C21H20O6/c1-11(2)4-9-14-15(22)10-16(23)17-18(24)19(25)20(27-21(14)17)12-5-7-13(26-3)8-6-12/h4-8,10,22-23,25H,9H2,1-3H3

TUUXBSASAQJECY-UHFFFAOYSA-N

582.0±50.0°C (Predicted)

228-229°C

>98%

1.359 g/cm3

Soluble in DMSO

Yellow Powder

Store at 2-8°C

Yellow

Powder