体外研究 (In Vitro) | IHMT-TRK-284 (Compound 34) (0-10 μM, 72 h) shows antiproliferative effects against BaF3 cells, a panel of kinase transformed BaF3 cells, and KM-12-LUC cells[1]. IHMT-TRK-284 (0-10 μM, 24 h) induces apoptosis and arrests the cell cycle into G0/G1 phase in KM-12-LUC cells[1]. IHMT-TRK-284 exerts its inhibitory effect to the colon cancer cells through on-target inhibition of TRK[1]. IHMT-TRK-284 could overcome drug resistant mutants including V573M and F589L in the ATP binding pocket as well as G667C/S in the DFG region[1]. IHMT-TRK-284 shows selectivity over VEGFR2 kinase[1].
Cell Proliferation Assay[1] Cell Line: | BaF3 cells, a panel of kinase transformed BaF3 cells, and KM-12-LUC cells | Concentration: | 0-10 μM | Incubation Time: | 72 h | Result: | Showed antiproliferative effects against BaF3 cells, a panel of kinase transformed BaF3 cells, and KM-12-LUC cells. GI50for KM-12-LUC cells was 0.002 μM. Antiproliferative effects of IHMT-TRK-284 against a panel of kinase transformed BaF3 cells[1].
Target | BaF3-TEL-ABL | BaF3-TEL-CSF1R | BaF3-TEL-KIT | BaF3-TEL-PDGFRα | BaF3-TEL-PDGFRβ | BaF3-TEL-TRKA | BaF3-TEL-TRKB | BaF3-TEL-TRKC | GI50(nM) | 411.1 | 4 | 923.2 | 1.7 | 1.4 | 8.5 | 8.2 | 27.3 |
Antiproliferative effects of IHMT-TRK-284 against a panel of TRKs wt/mutants transformed BaF3 cells (n = 3)[1]. Showed antiproliferative effects with GI50s of 1.4 ± 0.011, 0.007 ± 0.001, 0.003 ± 0.001, 0.004 ± 0.001, 0.194 ± 0.013, 0.034 ± 0.002, 0.002 ± 0.001 μM against BaF3, BaF3-LMNA-TRKA, BaF3-LMNA-TRKA-V573M, BaF3-LMNA-TRKA-F589L, BaF3-LMNA-TRKA-G595R, BaF3-LMNA-TRKA-G667C, BaF3-LMNA-TRKA-G667S cells, respectively. |
Western Blot Analysis[1] Cell Line: | BaF3-TEL-TRKA, BaF3-TEL-TRKB, BaF3-TEL-TRKC, BaF3-LMNATRKA-V573M, BaF3-LMNA-TRKA-F589L, BaF3-LMNA-TRKA-G595R, BaF3-LMNA-TRKA-G667C/S, and KM-12-LUC cells | Concentration: | 0, 0.01, 0,03, 0.1, 0.3, 1, 3, and 10 μM | Incubation Time: | 2 h | Result: | In transformed BaF3 cells: Inhibited the phosphorylation of TRKA Y490 (EC50= 0.026 μM) and corresponding tyrosine residues TRKB Y515 (EC50= 0.069 μM) and TRKC Y516 (EC50= 0.029 μM); potently inhibited the phosphorylation of Y490 in V573M, F589L, and G667C/S mutants with EC50s of 0.013 μM, 0.021 μM, 0.067 μM, and 0.074 μM respectively. In KM-12-LUC cells: Blocked the phosphorylation of TRKA Y490 at the concentration of 0.01 μM; remarkably inhibited the phosphorylation of downstream signaling mediators AKT T308/S473 and ERK1/2 (T202/Y204) (EC50less than 0.03 μM). |
Apoptosis Analysis[1] Cell Line: | KM-12-LUC cells | Concentration: | 0, 0.01, 0,03, 0.1, 0.3, 1, 3, and 10 μM | Incubation Time: | 24 h | Result: | Induced dose-dependent cell apoptotic death. |
Cell Cycle Analysis[1] Cell Line: | KM-12-LUC cells | Concentration: | 0, 0.01, 0,03, 0.1, 0.3, 1, 3, and 10 μM | Incubation Time: | 24 h | Result: | Arrested the cell cycle into G0/G1 phase. |
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体内研究 (In Vivo) | IHMT-TRK-284 (Compound 34) (40 and 80 mg/kg; p.o.; daily, 10 days) shows good in vivo PK and antitumor efficacy properties[1].
Animal Model: | Four-week old female nu/nu mice, one million BaF3-TELTRKA, BaF3-TEL-TRKB, BaF3-TEL-TRKC, BaF3-LMNA-TRKA-F589L, BaF3-LMNA-TRKA-G667S, and five million KM-12-LUC cells in DMEM medium were formulated as a 1:1 mixture with matrigel and injected into the subcutaneous space on the right flank of nu/nu mice[1] | Dosage: | 40 mg/kg and 80 mg/kg | Administration: | Daily oral gavage, 10 days | Result: | Dose-dependently inhibited the BaF3-TEL-TRKA, BaF3-TEL-TRKB, and BaF3-TEL-TRKC tumor progression with TGI (tumor growth inhibition) of 68%, 93%, and 58%. Dose-dependently inhibited the tumor progression and exhibited the TGI of 93% at 40 mg/kg/day and 95% at 80 mg/kg/day in KM-12-LUC cells inoculated xenograft mouse model. Potently inhibited the tumor growth with TGI values of 88% and 89% respectively at 80 mg/kg dosage in BaF3- LMNA-TRKA-F589L and BaF3-LMNA-TRKA-G667S cells. |
Animal Model: | Mice, sprague dawley rats, and beagle dogs[1] | Dosage: | 1 mg/kg and 10 mg/kg | Administration: | Intravenous injection and oral administration (Pharmacokinetic Analysis) | Result: | Pharmacokinetic study of IHMT-TRK-284 in mice, sprague dawley rats, and beagle dogsa[1]
Parameter | Mice i.v. (1 mg/kg) | Mice p.o. (10 mg/kg) | Rats i.v. (1 mg/kg) | Rats p.o. (10 mg/kg) | Beagle Dogs i.v. (1 mg/kg) | Beagle Dogs p.o. (10 mg/kg) | AUC(0-t) (ng/mL*h) | 748 | 1431 | 393 | 952 | 323 | 464 | Tmax (h) | 0.033 | 1.5 | 0.03 | 4.7 | 0.08 | 4.3 | T1/2(h) | 2.6 | 3.4 | 2.7 | 2.5 | 0.03 | 11.8 | Vz (mL/kg) | 4934 | 31567 | 9682 | 2416844-79-4 | 运输条件 | Room temperature in continental US; may vary elsewhere. | 储存方式 | Please store the product under the recommended conditions in the Certificate of Analysis. |
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