AGI-5198 (also know as IDH-C35) is a potent and selective mutant IDH1 inhibitor. AGI-5198 has been shown to have anti-tumor efficacy in the TS603 glioma cell line and to lower tumor 2-HG production in HT1080 and U87MG cells with IC50 values of 0.48 μM and 0.07 μM, respectively. AGI-5198 (IDH-C35) inhibits IDH1 R132H mutant and R132C mutant in vitro with IC50 of 0.07 μM and 0.16 μM respectively, but not wild-type IDH1 or any of the examined IDH2 isoforms (IC50 > 100 μM). In R132H-IDH1 glioma xenografts, AGI-5198 (450 mg/kg/day) caused 50-60% growth inhibition over a treatment period of three weeks with no affect in the growth of IDH1 wild-type glioma xenografts. Under conditions of near complete 2-HG inhibition, AGI-5198 can induce demethylation of histone H3K9me3 and expression of genes associated with gliogenic differentiation.
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Source | Cancer Res (2015). Figure 1. AGI-5198 |
| Method | Colony-forming assays | |
| Cell Lines | IDH1MT cells | |
| Concentrations | 800 nmol/L | |
| Incubation Time | 72 h | |
| Results | After 72 hours of incubation in the presence of AGI-5198, IDH-mediated NADPH production capacity of lDH1WT/R132H HCT116 cells was restored to levels comparable with those of lDH1WT/WT HCT116 cells |
| Molecular Weight | 462.56 |
| Formula | C27H31FN4O2 |
| CAS Number | 1355326-35-0 |
| Solubility (25°C) | DMSO 15 mg/mL |
| Storage |
Powder -20°C 3 years ; 4°C 2 years In solvent -80°C 6 months ; -20°C 1 month |
| Species | Mouse | Rat | Rabbit | Guinea pig | Hamster | Dog |
| Weight (kg) | 0.02 | 0.15 | 1.8 | 0.4 | 0.08 | 10 |
| Body Surface Area (m2) | 0.007 | 0.025 | 0.15 | 0.05 | 0.02 | 0.5 |
| Km factor | 3 | 6 | 12 | 8 | 5 | 20 |
| Animal A (mg/kg) = Animal B (mg/kg) multiplied by | Animal B Km |
| Animal A Km |
For example, to modify the dose of Compound A used for a mouse (20 mg/kg) to a dose based on the BSA for a rat, multiply 20 mg/kg by the Km factor for a mouse and then divide by the Km factor for a rat. This calculation results in a rat equivalent dose for Compound A of 10 mg/kg.
| Related Isocitrate Dehydrogenase (IDH) Products |
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| Mutant IDH1-IN-4
Mutant IDH1-IN-4 is an inhibitor of mutant isocitrate dehydrogenase 1 (IDH 1) with an IC50 value of ≤ 0.5 μM for mutant IDH 1 in R132H, HT1080 and U87R132H cells. |
| (S,S)-GSK321
(S,S)-GSK321 is the (S,S)-enantiomer of GSK321.GSK321 is a potent inhibitor of the mutant isocitrate dehydrogenase 1 (IDH1) enzyme. |
| IDH1 Inhibitor 1
IDH1 Inhibitor 1 is a potent, orally bioavailable, brain-permeable, selective mutant IDH1 inhibitor that inhibits IDH1R132H, IDH1R132C, and IDH1WT with IC50s of 0.021 μM, 0.045 μM, and 2.52 μM, respectively. possesses antitumor activity. |
| IDH1 Inhibitor 7
IDH1 Inhibitor 7 is an IDH1 inhibitor with an IC50 of less than 100 nM. |
| (R,R)-GSK321
(R,R)-GSK321 is an isomer of GSK321 and a wild-type isocitrate dehydrogenase 1 (WT IDH1) inhibitor with an IC50 value of 120 nM. |
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