TK216

Alias: TK-216; TK216; TK 216
Cat No.:V35194 Purity: ≥98%
TK216 is an orally available inhibitor of E26 transcription factor (ETS).
TK216 Chemical Structure CAS No.: 1903783-48-1
Product category: DNA(RNA) Synthesis
This product is for research use only, not for human use. We do not sell to patients.
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Other Forms of TK216:

  • (-)-TK216
Official Supplier of:
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Top Publications Citing lnvivochem Products
Product Description
TK216 is an orally available inhibitor of E26 transcription factor (ETS). TK216 binds to EWS-FLI1 directly and prevents the protein interaction between EWS-FLI1. The binding of EWS-FLI1 to RNA helicase A is inhibited by TK216. TK216 exhibits antitumor properties.
Biological Activity I Assay Protocols (From Reference)
Targets
ETS
ln Vitro
In DLBCL cell lines, TK216 (500 nM) induces apoptosis for a duration of 24-72 hours [1]. In the Ewing sarcoma A4573 cell line, TK216 (0.03, 0.06, 0.125, 0.25, 0.5 μM) inhibits growth in a dose-dependent manner [1]. DLBCL cell lines are exposed to TK216 (0.1, 0.3, and 1 μM) to induce apoptosis; the amount of cleaved caspase 3 is normalized to b-actin and displayed as fold over control [1]. TK216's half maximal inhibitory concentration (IC50) for the HL-60 AML and TMD-8 DLBCL cell lines are 0.363 μM and 0.152 μM, respectively[1]. Reduced transcription and proliferation are the results of TK216's inhibition of the EWS-FLI1 (Ewing sarcoma breakpoint region 1/Friend leukemia virus integration 1 fusion protein) protein interaction [1].
ln Vivo
In TMD-8 xenograft models, TK216 (100 mg/kg orally; twice daily for 13 days) reduces the formation of tumors [1].
Cell Assay
Apoptosis Analysis[1]
Cell Types: DLBCL cell lines
Tested Concentrations: 500 nM
Incubation Duration: For 24, 48 or 72 hrs (hours)
Experimental Results: Induced apoptosis in DLBCL cell lines.
Animal Protocol
Animal/Disease Models: NOD-SCID (severe combined immunodeficient) mouse subcutaneously (sc) inoculated with TMD8 cells[1]
Doses: 100 mg/kg
Route of Administration: PO; twice (two times) daily for 13 days
Experimental Results: Resulted in tumor growth inhibition.
References
[1]. Spriano F, et al. The ETS Inhibitors YK-4-279 and TK-216 Are Novel Antilymphoma Agents. Clin Cancer Res. 2019 Aug 15;25(16):5167-5176.
[2]. Brian Lannutti, et al. Uses of indolinone compounds. US10159660B2.
These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C19H15CL2NO3
Molecular Weight
376.23
Exact Mass
375.04
Elemental Analysis
C, 60.66; H, 4.02; Cl, 18.84; N, 3.72; O, 12.76
CAS #
1903783-48-1
Related CAS #
1903783-48-1 (racemic); 1903783-78-7 (rotation -)
Appearance
Solid powder
SMILES
C1CC1C2=CC=C(C=C2)C(=O)CC3(C4=C(C=CC(=C4NC3=O)Cl)Cl)O
InChi Key
ZWHNLSHDLKIXOG-UHFFFAOYSA-N
InChi Code
InChI=1S/C19H15Cl2NO3/c20-13-7-8-14(21)17-16(13)19(25,18(24)22-17)9-15(23)12-5-3-11(4-6-12)10-1-2-10/h3-8,10,25H,1-2,9H2,(H,22,24)
Chemical Name
4,7-dichloro-3-[2-(4-cyclopropylphenyl)-2-oxoethyl]-3-hydroxy-1H-indol-2-one
Synonyms
TK-216; TK216; TK 216
HS Tariff Code
2934.99.9001
Storage

Powder      -20°C    3 years

                     4°C     2 years

In solvent   -80°C    6 months

                  -20°C    1 month

Shipping Condition
Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)
Solubility Data
Solubility (In Vitro)
DMSO : ≥ 250 mg/mL (~664.5 mM)
Solubility (In Vivo)
Solubility in Formulation 1: ≥ 2.08 mg/mL (5.53 mM) (saturation unknown) in 10% DMSO + 40% PEG300 + 5% Tween80 + 45% Saline (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 20.8 mg/mL clear DMSO stock solution to 400 μL PEG300 and mix evenly; then add 50 μL Tween-80 to the above solution and mix evenly; then add 450 μL normal saline to adjust the volume to 1 mL.
Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH₂ O to obtain a clear solution.

Solubility in Formulation 2: ≥ 2.08 mg/mL (5.53 mM) (saturation unknown) in 10% DMSO + 90% (20% SBE-β-CD in Saline) (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 20.8 mg/mL clear DMSO stock solution to 900 μL of 20% SBE-β-CD physiological saline solution and mix evenly.
Preparation of 20% SBE-β-CD in Saline (4°C,1 week): Dissolve 2 g SBE-β-CD in 10 mL saline to obtain a clear solution.

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Solubility in Formulation 3: ≥ 2.08 mg/mL (5.53 mM) (saturation unknown) in 10% DMSO + 90% Corn Oil (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 20.8 mg/mL clear DMSO stock solution to 900 μL of corn oil and mix evenly.


 (Please use freshly prepared in vivo formulations for optimal results.)
Preparing Stock Solutions 1 mg 5 mg 10 mg
1 mM 2.6579 mL 13.2897 mL 26.5795 mL
5 mM 0.5316 mL 2.6579 mL 5.3159 mL
10 mM 0.2658 mL 1.3290 mL 2.6579 mL

*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.

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What is the mass of compound required to make a 10 mM stock solution in 5 ml of DMSO given that the molecular weight of the compound is 350.26 g/mol?
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What volume of a given 10 mM stock solution is required to make 25 ml of a 25 μM solution?
Using the equation C1V1 = C2V2, where C1=10 mM, C2=25 μM, V2=25 ml and V1 is the unknown:
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Note: Chemical formula is case sensitive: C12H18N3O4  c12h18n3o4
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In vivo Formulation Calculator (Clear solution)
Step 1: Enter information below (Recommended: An additional animal to make allowance for loss during the experiment)
Step 2: Enter in vivo formulation (This is only a calculator, not the exact formulation for a specific product. Please contact us first if there is no in vivo formulation in the solubility section.)
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Calculation results

Working concentration mg/mL;

Method for preparing DMSO stock solution mg drug pre-dissolved in μL DMSO (stock solution concentration mg/mL). Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug.

Method for preparing in vivo formulation:Take μL DMSO stock solution, next add μL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O,mix and clarify.

(1) Please be sure that the solution is clear before the addition of next solvent. Dissolution methods like vortex, ultrasound or warming and heat may be used to aid dissolving.
             (2) Be sure to add the solvent(s) in order.

Clinical Trial Information
NCT Number Recruitment interventions Conditions Sponsor/Collaborators Start Date Phases
NCT05046314 Not yet recruiting Biological: TK216+Vincristin Sarcoma, Ewing Shanghai Pharmaceuticals Holding
Co., Ltd
October 28, 2024 Phase 2
NCT02657005 Terminated Drug: TK216 Sarcoma, Ewing Oncternal Therapeutics, Inc August 2016 Phase 1
Phase 2
NCT03752138 Withdrawn Drug: Group 1: TK216
Drug: Group 2: TK216
Recurrent Acute Myeloid Leukemia
Refractory Acute Myeloid Leukemia
M.D. Anderson Cancer Center March 31, 2019 Phase 1
Biological Data
  • Effects of YK-4-279 and TK-216 in the ABC-DLBCL xenograft model. Clin Cancer Res . 2019 Aug 15;25(16):5167-5176.
  • TK-216 (A) and YK-4-279 (B) combinations in lymphoma cell lines. Clin Cancer Res . 2019 Aug 15;25(16):5167-5176.
  • In vivo synergy between TK-216 and lenalidomide. Clin Cancer Res . 2019 Aug 15;25(16):5167-5176.
  • TK-216 coimmunoprecipitations ABC- and GCB-DLBCL cell lines. Clin Cancer Res . 2019 Aug 15;25(16):5167-5176.
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