Ribociclib hydrochloride

  • Chemical Properties
CAS No. 1211443-80-9 Cat. No. BCP12791
Name Ribociclib hydrochloride
Synonyms LEE 011 hydrochloride;LEE-011 hydrochloride;LEE011 hydrochloride;
Formula C23H31ClN8O M. Wt 471
  • Biological Activity
Description CDK4/6 inhibitor LEE011 specifically inhibits CDK4 and 6, thereby inhibiting retinoblastoma (Rb) protein phosphorylation. Inhibition of Rb phosphorylation prevents CDK-mediated G1-S phase transition, thereby arresting the cell cycle in the G1 phase, suppressing DNA synthesis and inhibiting cancer cell growth. Overexpression of CDK4/6, as seen in certain types of cancer, causes cell cycle deregulation.Treatment with LEE011 significantly reduced proliferation in 12 of 17 human neuroblastoma-derived cell lines by inducing cytostasis at nanomolar concentrations (mean IC50 = 307 ± 68 nmol/L in sensitive lines). LEE011 caused cell-cycle arrest and cellular senescence that was attributed to dose-dependent decreases in phosphorylated RB and FOXM1, respectively . in vivo: Responsiveness of neuroblastoma xenografts to LEE011 translated to the in vivo setting in that there was a direct correlation of in vitro IC50 values with degree of subcutaneous xenograft growth delay.
Pathways Cell Cycle/DNA Damage 
Targets CDK 

Structure

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