TAS-116 Chemical Properties

Boiling point:

661.7±55.0 °C(Predicted)

Density 

1.36±0.1 g/cm3(Predicted)

storage temp. 

Store at -20°C

solubility 

DMSO: soluble

form 

A solid

pka

15.43±0.50(Predicted)

color 

White to off-white

TAS-116 Usage And Synthesis

Biological Activity

TAS-116 is a novel small molecule inhibitor of HSP90 with Ki values of 34.7 nmol/L and 21.3 nmol/L for HSP90α and HSP90β, respectively. It does not inhibit other ATPases such as HSP70 (IC50 >200 μmol/L).

in vitro

TAS-116 is a selective inhibitor of HSP90α and HSP90β in the cytoplasm, but has no inhibitory effect on endoplasmic reticulum GRP94 or mitochondrial TRAP1. Treatment of HCT116 cells with 0.3 μM of TAS-1116 for 8 hours resulted in a decrease in DDR1 levels and induction of HSP70.

in vivo

In a mouse model with human xenograft tumors, oral administration of TAS-116 induced tumor shrinkage accompanied by depletion of HSP90. In a rat model, TAS-116 was more distributed in subcutaneously xenografted NCI-H1975 non-small cell lung cancer tumors than in the retina. TAS-116 was also active in orthotopically transplanted NCI-H1975 lung tumors.

target

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