Tipifarnib inhibits the growth of H-Ras-transformed NIH 3T3 cells with an impressive IC50 value of 1.7 nM .
Tipifarnib is a potent inhibitor of Trypanosoma Cruzi with the ED50 of 4 nM.
Combining Tipifarnib with 10 nM 4-OH-ICI 47699 in the presence of E2 reduces the IC50 8-fold from 400 to 50 nM.
Tipifarnib inhibits isolated human farnesyltransferase for a lamin B peptide and for the K-RasB peptide with IC50 of 0.86 nM and 7.9 nM, respectively.
Tipifarnib shows inhibition of cell growth or angiogenesis, and induction of apoptosis in aggressive prostate cancer (PCa).
Tipifarnib shows a significant decrease in the concentration of exosomes in C4-2B cells both at 0.25 and 1?μM as well as in the PC-3 cells at 0.25?μM for 48?hours.
Tipifarnib (1?μM) significantly inhibits the protein concentration of Alix, nSMase2, and Rab27a in C4-2B cells.
Tipifarnib (0.25 μM) significantly inhibits the activation of p-ERK (downstream effector molecule of the Ras/Raf/ERK signaling pathway) but not total ERK in C4-2B and PC-3 cells but not in the normal RWPE-1 cells.
Tipifarnib (0-250?nM) causes a dose-dependent decrease in Alix, nSMase2, and Rab27a in both C4-2B and PC-3 cells, but not in the RWPE-1 cells, Tipifarnib has the potential to be a potent inhibitor of exosome biogenesis and/or secretion.
Medlife has not independently confirmed the accuracy of these methods. They are for reference only.