COTI-2
Based on 4 publication(s) in Google Scholar
COTI-2, an anti-cancer agent with low toxicity, is an orally available third generation activator of p53 mutant forms. COTI-2 acts both by reactivating mutant p53 and inhibiting the PI3K/AKT/mTOR pathway. COTI-2 induces apoptosis in multiple human tumor cell lines. COTI-2 exhibits antitumor activity in HNSCC through p53-dependent and -independent mechanisms. COTI-2 converts mutant p53 to wild-type conformation.
For research use only. We do not sell to patients.
- Purity: 99.02%
- CAS No.: 1039455-84-9
- Formula: C19H22N6S
- Molecular Weight:366.48
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Storage:Powder -20°C, 3 years , 4°C, 2 years ; In solvent -80°C, 2 years , -20°C, 1 year
To place orders, for customer services and technical support, please contact: MedChemExpress USA
Tel: 609-228-6898 E-mail: [email protected] [email protected]
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Biological Activity
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Chemical Information
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Solvent & Solubility
- Protocol
- Purity & Documentation
- References
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Help & FAQs
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Apoptosis Compound Library
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Publications Citing Use of MedChemExpress (MCE) COTI-2
More
Biological Activity
p53[1]
COTI-2 efficiently inhibits the proliferation rate of all the tested cell lines following 72 h of treatment. COTI-2 is significantly effective at inhibiting tumor cell proliferation in all three cell lines (COLO-205, HCT-15, and SW620). Relatively low concentrations of COTI-2 are active against all human glioblastoma cell lines tested (U87-MG, SNB-19, SF-268, and SF-295). COTI-2 treatment of SHP-77 cells with approximate IC50 concentrations results in the induction of early apoptosis among 40 to 47% of total cells[2].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
| NCT Number | Sponsor | Condition | Start Date |
Phase
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|---|---|---|---|---|
| NCT01329991 | Plexxikon| | 2011-05 | PHASE1 |
Chemical Information
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CAS No. 1039455-84-9
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Appearance Solid
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Molecular Weight 366.48
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Formula C19H22N6S
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Color Light yellow to yellow
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SMILES
S=C(N1CCN(C2=NC=CC=C2)CC1)N/N=C3CCCC4=C\3N=CC=C4
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Shipping
Room temperature in continental US; may vary elsewhere.
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Storage
Powder -20°C 3 years 4°C 2 years In solvent -80°C 2 years -20°C 1 year
Publications (4)
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Journal Impact Factor
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Most Recent
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Cell Death Dis
2023 Dec 14;14(12):831. PMID: 38097548 -
Cell Rep
Repurposing antiparasitic antimonials to noncovalently rescue temperature-sensitive p53 mutations. [Abstract]2022 Apr 12;39(2):110622. PMID: 35417717 -
Int J Mol Sci
Improving Reporter Gene Assay Methodology for Evaluating the Ability of Compounds to Restore P53 Activity. [Abstract]2022 Nov 10;23(22):13867. PMID: 36430341 -
Iran J Basic Med Sci
COTI-2 suppresses the malignancy of bladder cancer by inducing apoptosis via the AMPK-mTOR signaling pathway. [Abstract]2025;28(3):240-246. PMID: 39906622
Solvent & Solubility
DMSO : 5 mg/mL (13.64 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)
Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 2 years; -20°C, 1 year. When stored at -80°C, please use it within 2 years. When stored at -20°C, please use it within 1 year.
Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 2 years; -20°C, 1 year. When stored at -80°C, please use it within 2 years. When stored at -20°C, please use it within 1 year.
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
Select the appropriate dissolution method based on your experimental animal and administration route.
- For the following dissolution methods, please ensure to first prepare a clear stock solution using an In Vitro approach and then sequentially add co-solvents:
- To ensure reliable experimental results, the clarified stock solution can be appropriately stored based on storage conditions. As for the working solution for In Vivo experiments, it is recommended to prepare freshly and use it on the same day.
- The percentages shown for the solvents indicate their volumetric ratio in the final prepared solution. If precipitation or phase separation occurs during preparation, heat and/or sonication can be used to aid dissolution.
For the following dissolution methods, please prepare the working solution directly:
It is recommended to prepare fresh solutions and use them promptly within a short period of time.
The percentages shown for the solvents indicate their volumetric ratio in the final prepared solution. If precipitation or phase separation occurs during preparation, heat and/or sonication can be used to aid dissolution.
Add each solvent one by one: 50% PEG300 50% Saline
Solubility: 5 mg/mL (13.64 mM); Suspended solution; Need ultrasonic
Add each solvent one by one: 15% Cremophor EL 85% Saline
Solubility: 5 mg/mL (13.64 mM); Suspended solution; Need ultrasonic
Please enter the basic information of animal experiments:
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Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.
Please enter your animal formula composition:
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%DMSO +
Recommended: Keep the proportion of DMSO in working solution below 2% if your animal is weak.
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%+
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+%Tween-80 + +
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%Saline +
The co-solvents required include: DMSO, . All of co-solvents are available by MedChemExpress (MCE). , Tween 80. All of co-solvents are available by MedChemExpress (MCE).
Working solution concentration: 0.22 mg/mL
Method for preparing stock solution: mg drug dissolved in μL DMSO. Stock solution concentration: mg/mL.
1. Take μL DMSO stock solution;
2. Add μL .
μL , mix evenly;
3. Then add μL Tween 80, mix evenly;
4. Then add μL
Please ensure that the stock solution in the first step is dissolved to a clear state, and add co-solvents in sequence. You can use ultrasonic heating (ultrasonic cleaner, recommended frequency 20-40 kHz), vortexing, etc. to assist dissolution.
Protocol
The interaction of COTI-2 with 227 kinases is tested using the AMBIT BIOSCIENCES KINOMESCAN assay. In brief, streptavidin-coated magnetic beads are treated with biotinylated small molecule ligands for 30 min at 25°C to generate affinity resins for kinase assays. The liganded beads are blocked with excess biotin and washed with blocking buffer (1% BSA, 0.05% Tween 20, 1 mM DTT) to remove unbound ligand and to reduce non-specific binding. Binding reactions are assembled by combining phage lysates, liganded affinity beads, and COTI-2 in 1× binding buffer (20% SeaBlock, 0.17× PBS, 0.05% Tween 20, 6 mM DTT). All reactions are carried out in polystyrene 96-well plates that have been pre-treated with blocking buffer in a final volume of 0.1 mL[2].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
SHP-77 cells are cultured with various concentrations of COTI-2 for 48 h. Cells are then washed twice with 1× cold PBS and stained with Annexin V and 7AAD according to the manufacturer's instructions. Briefly, 5 μL of Annexin V and 7AAD are added to 1×105 cells and incubated for 15 min at room temperature in the dark. Then 400 μL of the 1× binding buffer (100 mM HEPES, pH 7.4, 140 mM NaCl, 2.5 mM CaCl2) is added to the cells. Finally, cells are analyzed using a flow cytometer[2].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
SHP-77 and HT-29 cells are injected in 50% matrigel into flanks of NCr-nu mice (2×106 cells per injection site) (n=5 mice per group). In the case of SHP-77 xenografts, treatment with COTI-2 begins prior to the appearance of palpable tumors. One day after injection of SHP-77 cells, animals receive 3 mg/kg of COTI-2 (once every two days, up to 38 days). Tumor sizes are estimated at 5, 10, 17, 24, and 38 days, by standard caliper measurements. In the case of HT-29 xenografts, the capacity of COTI-2 to suppress growth of established tumors is assessed. HT-29 xenografts are allowed to grow to 200 mm3 before starting IP treatment with COTI-2 (10 mg/kg, 5 days a week for 7 weeks) or saline IP. Tumor growth is measured every 4 days by caliper measurement[2].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
Purity & Documentation
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Data Sheet (281 KB)
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SDS (392 KB)
- English - EN (392 KB)
- Français - FR (392 KB)
- Deutsch - DE (392 KB)
- Norwegian - NO (392 KB)
- Español - ES (392 KB)
- Swedish - SV (392 KB)
- Italian - IT (392 KB)
- Korean - KR (392 KB)
- Portuguese - PT (392 KB)
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Handling Instructions (2659 KB)
References
[1]. Duffy MJ, et al. Mutant p53 as a target for cancer treatment. Eur J Cancer. 2017 Sep;83:258-265. [Content Brief]
[2]. Salim KY, et al. COTI-2, a novel small molecule that is active against multiple human cancer cell lines in vitro and in vivo. Oncotarget. 2016 Jul 5;7(27):41363-41379. [Content Brief]
[3]. Lindemann A, et al. COTI-2, A Novel Thiosemicarbazone Derivative, Exhibits Antitumor Activity in HNSCC through p53-dependent and -independent Mechanisms. Clin Cancer Res. 2019 Sep 15;25(18):5650-5662. [Content Brief]
Complete Stock Solution Preparation Table
Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 2 years; -20°C, 1 year. When stored at -80°C, please use it within 2 years. When stored at -20°C, please use it within 1 year.
| Optional Solvent | Concentration Solvent Mass | 1 mg | 5 mg | 10 mg | 25 mg |
|---|---|---|---|---|---|
| DMSO | 1 mM | 2.7287 mL | 13.6433 mL | 27.2866 mL | 68.2165 mL |
| 5 mM | 0.5457 mL | 2.7287 mL | 5.4573 mL | 13.6433 mL | |
| 10 mM | 0.2729 mL | 1.3643 mL | 2.7287 mL | 6.8217 mL |
COTI-2 Related Classifications
HY-19896 Related Classifications
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