Abemaciclib (LY2835219) 是具有选择性的 CDK4/6 抑制剂，能够抑制 CDK4/CDK6 的活性，IC₅₀ 分别为 2 nM 和 10 nM。

Abemaciclib (LY2835219) is a selective CDK4/6 inhibitor with IC 50 values of 2 nM and 10 nM for CDK4 and CDK6, respectively.

Solid

Cdk4/cyclin D1 2 nM (IC50) CDK6/cyclinD1 1

Abemaciclib reduces cell viability with the IC50 values ranging from 0.5 μM to 0.7 μM, inhibits Akt and ERK signaling but not mTOR activation at head and neck squamous cell carcinoma (HNSCC) cells. Abemaciclib shows inhibition on A375R1-4, M14R, and SH4R with EC50 values ranging from 0.3 to 0.6 μM; Abemaciclib inhibits the proliferation of the parental A375 and resistant A375RV1 and A375RV2 cells with similar potencies with IC50 values of 395, 260, and 463 nM, respectively. Abemaciclib inhibits CDK4 and CDK6 with low nanomolar potency, inhibits Rb phosphorylation resulting in a G1 arrest and inhibition of proliferation, and its activity is specific for Rb-proficient cells. has not independently confirmed the accuracy of these methods. They are for reference only.

Abemaciclib (45 mg/kg, p.o.) in combination with RAD001 causes a cooperative antitumor effect in HNSCC xenograft tumor. Abemaciclib (45 or 90 mg/kg, p.o.) shows significant tumor growth inhibition in an A375 xenograft model. has not independently confirmed the accuracy of these methods. They are for reference only.

Room temperature in continental US; may vary elsewhere.

4°C, protect from light In solvent : -80°C, 6 months; -20°C, 1 month (protect from light)

[1]. Ku BM, et al. The CDK4/6 inhibitor LY2835219 has potent activity in combination with mTOR inhibitor in head and neck squamous cell carcinoma. Oncotarget.?2016 Mar 22;7(12):14803-13.
[2]. Yadav V, et al. The CDK4/6 inhibitor LY2835219 overcomes PLX4032 resistance resulting from MAPK reactivation and cyclin D1 upregulation. Mol Cancer Ther. 2014 Oct;13(10):2253-63.

In Vitro: DMSO : 2.94 mg/mL (5.80 mM; ultrasonic and warming and heat to 80°C)H₂O : < 0.1 mg/mL (ultrasonic;warming;heat to 60°C) (insoluble)配制储备