Trilaciclib (G1T28) |
| رقم الكتالوجGC34118 |
Trilaciclib (G1T28) هو مثبط CDK4 / 6 مع IC50s من 1 نانومتر و 4 نانومتر لـ CDK4 و CDK6 ، على التوالي.
Products are for research use only. Not for human use. We do not sell to patients.
Cas No.: 1374743-00-6
Sample solution is provided at 25 µL, 10mM.
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Trilaciclib is a CDK4/6 inhibitor with IC50s of 1 nM and 4 nM for CDK4 and CDK6, respectively.
Incubation with Trilaciclib (G1T28) for 24 hours induces a robust G1 cell-cycle arrest (time=0). By 16 hours after Trilaciclib hydrochloride washout, cells have reentered the cell cycle and demonstrate cell-cycle kinetics similar to untreated control cells. These results demonstrate that Trilaciclib causes a transient, and reversible G1 arrest. A transient Trilaciclib-mediated G1 cell-cycle arrest in CDK4/6-sensitive cells decreases the in vitro toxicity of a variety of commonly used cytotoxic chemotherapy agents associated with myelosuppression[1].
Trilaciclib (G1T28) treatment results in a robust and dose-dependent suppression of proliferation in HSPCs at 12 hours, with EdU incorporation returning near baseline levels in a dose-dependent manner by 24 hours after administration. These data demonstrate that a single oral dose of Trilaciclib can produce reversible cell-cycle arrest in HSPCs in a dose-dependent manner in vivo. Mice given 100 mg/kg Trilaciclib 30 minutes prior to etoposide treatment, exhibits only background levels of caspase-3/7 activity. These data demonstrate that Trilaciclib can protect the bone marrow from chemotherapy-induced apoptosis in vivo. The data demonstrate that treatment with Trilaciclib prior to 5-FU likely decreases 5-FU-induced damage by chemotherapy in HSPCs, thus accelerating blood count recovery after chemotherapy[1].
[1]. Bisi JE, et al. Preclinical Characterization of G1T28: A Novel CDK4/6 Inhibitor for Reduction of Chemotherapy-Induced Myelosuppression. Mol Cancer Ther. 2016 May;15(5):783-93.
Kinase experiment: | HS68, WM2664, and A2058 cells are treated with 300 nM Trilaciclib (G1T28) or DMSO (0.1%), for 4, 8, 16, or 24 hours. Whole cell extracts are prepared using 1× radioimmunoprecipitation assay buffer containing 1× HALT protease and phosphatase inhibitors. Total protein concentration is determined by using the kit, according to the manufacturer's instructions. For Western blot analysis, protein is processed as described previously. Antibodies to total RB andβ-tubulin run as a loading control are assessed[1]. |
Cell experiment: | HS68 cells are treated for 24 hours with Trilaciclib (G1T28) at 10, 30, 100, 300, 1,000, or 3,000 nM final concentration. Cells are harvested and fixed in ice-cold methanol. Fixed cells are stained with 20 μg propidium iodide, 50 μg RNAse A in PBS-CMF (calcium magnesium free)+1% BSA, Fraction V. Samples are processed on Cyan ADP Analyzer, and cell-cycle analysis is completed using software[1]. |
Animal experiment: | Mice[1]Female athymic nude mice are implanted with H69 cells and monitored until treatment initiation. Once tumors reach an acceptable size (150 mm3), mice are dosed in various combinations of Trilaciclib (100 mg/kg) and topotecan for 5 days per week for 4 weeks. Tumors are measured for up to 60 days after treatment. All mice that reach excessive tumor burden before 60 days are humanely euthanized. Topotecan and Trilaciclib levels in blood plasma from the mice treated with Trilaciclib hydrochloride and/or topotecan are processed and analyzed using established methods. |
References: [1]. Bisi JE, et al. Preclinical Characterization of G1T28: A Novel CDK4/6 Inhibitor for Reduction of Chemotherapy-Induced Myelosuppression. Mol Cancer Ther. 2016 May;15(5):783-93. | |
| Cas No. | 1374743-00-6 | SDF | |
| Canonical SMILES | O=C1NCC2(N3C1=CC4=CN=C(NC5=NC=C(N6CCN(C)CC6)C=C5)N=C43)CCCCC2 | ||
| Formula | C24H30N8O | M.Wt | 446.55 |
| الذوبان | Soluble in DMSO | Storage | Store at -20°C |
| General tips | Please select the appropriate solvent to prepare the stock solution according to the
solubility of the product in different solvents; once the solution is prepared, please store it in
separate packages to avoid product failure caused by repeated freezing and thawing.Storage method
and period of the stock solution: When stored at -80°C, please use it within 6 months; when stored
at -20°C, please use it within 1 month. To increase solubility, heat the tube to 37°C and then oscillate in an ultrasonic bath for some time. |
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| Shipping Condition | Evaluation sample solution: shipped with blue ice. All other sizes available: with RT, or with Blue Ice upon request. | ||
| Prepare stock solution | |||
|
1 mg | 5 mg | 10 mg |
| 1 mM | 2.2394 mL | 11.197 mL | 22.3939 mL |
| 5 mM | 447.9 μL | 2.2394 mL | 4.4788 mL |
| 10 mM | 223.9 μL | 1.1197 mL | 2.2394 mL |
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Method for preparing in vivo formulation: Take μL DMSO master liquid, next addμL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O, mix and clarify.
Method for preparing in vivo formulation: Take μL DMSO master liquid, next add μL Corn oil, mix and clarify.
Note: 1. Please make sure the liquid is clear before adding the next solvent.
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Quality Control & SDS
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- Purity: >98.00%
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- SDS (Safety Data Sheet)
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Average Rating: 5 (Based on Reviews and 13 reference(s) in Google Scholar.)
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