CDKI-73 (LS-007) 是具有口服活性的、高效的 CDK9 抑制剂，其对CDK9、CDK1 和 CDK2 的 K_i 值分别为 4 nM、4 nM 和 3 nM。CDKI-73 可下调 RNA 聚合酶 II 的磷酸化。CDKI-73 也是一种 Rab11 的抑制剂。

CDKI-73 (LS-007) is an orally active and highly efficacious CDK9 inhibitor, with K i values of 4 nM, 4 nM and 3 nM for CDK9, CDK1 and CDK2, respectively. CDKI-73 down-regulates the RNAPII phosphorylation. CDKI-73 is also a novel pharmacological inhibitor of Rab11 cargo delivery and innate immune secretion.

Solid

CDK2 3.27 nM (IC50) CDK9 5.78 nM (IC5

CDKI-73 is highly cytotoxic to primary leukemia cells derived from CLL patients (mean LD50 = 0.08 μM) and shows>500-fold selectivity for primary leukemia cells over normal B-lymphocytes (LD50 = 40.5 μM).
CDKI-73 (0.1 μM, 4 h) inhibits the phosphorylation of serine 2 of RNA polymerase II and MCL1 protein expression in CLL cells.
CDKI-73 induced caspase-dependent apoptosis that was preceded by dephosphorylation of cdk9 and serine 2 of RNA polymerase II.
CDKI-73 is highly effective against all cell lines tested with an IC50 in the range of 0.012-0.517 μM; in particular three MLL-AML cell lines, namely MOLM13, MV4-11 and THP-1, were highly sensitive to CDKI-73 with IC50 values <0.062 μM.
has not independently confirmed the accuracy of these methods.

CDKI-73 (25, 50, 100 mg/kg) markedly decreases tumor growth in a dose-dependent manner and results in a prolongation of animal life span (P < 0.001) without causing body weight loss and other overt toxicities..
has not independently confirmed the accuracy of these methods. They are for reference only. Animal Model:

Room temperature in continental US; may vary elsewhere.

4°C, stored under nitrogen In solvent : -80°C, 6 months; -20°C, 1 month (stored under nitrogen)

[1]. Lam F, et al. Targeting RNA transcription and translation in ovarian cancer cells with pharmacological inhibitor CDKI-73. Oncotarget. 2014 Sep 15;5(17):7691-704.
[2]. Elisabeth Walsby, et al. A novel Cdk9 inhibitor preferentially targets tumor cells and synergizes with fludarabine. Oncotarget. 2014 Jan; 5(2): 375–385.

In Vitro: DMSO : ≥ 52 mg/mL (131.83 mM)配制储备液