fptase

Costunolide (Costus lactone) has anti-inflammatory and anti-oxidant properties and mediates apoptosis.

The L-778123 hydrochloride is an inhibitor of FPTase (IC50: 2 nM) and GGPTase-I (IC50: 98 nM) in enzyme inhibition determination.

Lipiferolide is an inhibitor of farnesyl protein transferase(FPTase), it inhibits the FPTase activity in a dose-dependent manner, and shows cell growth inhibitory activity against several tumor cells, it possesses cytotoxic activity against KB cells. Liriodenine also has antiplasmodial activity.

L-778123 is an inhibitor of FPTase and GGPTase-I. The combination of L-778123 and radiotherapy at dose level 1 showed acceptable toxicity in patients with locally advanced pancreatic cancer.

Lonafarnib (Sch66336) is an orally bioavailable FPTase inhibitor for H-ras, K-ras-4B, and N-ras (IC50: 1.9/5.2/2.8 nM).

XR3054 is a novel inhibitor of farnesyl protein transferase (FPTase). XR3054 inhibited the proliferation of the prostatic cancer cell lines LnCAP and PC3 and the colon carcinoma SW480 and HT1080 (IC50 values of 12.4, 12.2, 21.4 and 8.8 microM, respectively) but was relatively inactive when tested against a panel of breast carcinoma cell lines. The activity did not relate to the presence of mutant or wild-type ras in the cell lines tested. In conclusion XR3054 inhibits ras farnesylation, MAP kinase activation and anchorage-independent growth in NIH 3T3 transformed with v12 H-ras. Since the antiproliferative effect of the compound is not related to the ras phenotype, XR3054 may also have effects on other cell signaling mechanisms.

L-778123 is an inhibitor of FPTase and GGPTase-I, which was developed in part because it can completely inhibit Ki-Ras prenylation. The combination of L-778,123 and radiotherapy at dose level 1 showed acceptable toxicity in patients with locally advanced pancreatic cancer. Radiosensitization of a patient-derived pancreatic cancer cell line was observed.

(Rac)-Lonafarnib (Sch66336 racemate) is the racemic form of the potent, orally active farnesyl transferase (FTase) inhibitor, Lonafarnib. It effectively inhibits H-ras, K-ras, and N-ras with IC50 values of 1.9 nM, 5.2 nM, and 2.8 nM, respectively, and exhibits activities against the hepatitis delta virus (HDV).