PeptideDB

Polθ/PARP-IN-1

Polθ/PARP-IN-1

CAS No.:

Polθ/PARP-IN-1 (compound 25d) is a potent dual DNA polymerase theta (Polθ) and PARP inhibitor with IC50 values of 45.6
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Polθ/PARP-IN-1 (compound 25d) is a potent dual DNA polymerase theta (Polθ) and PARP inhibitor with IC50 values of 45.6 and 5.4 nM respectively. Polθ/PARP-IN-1 displays antiproliferative activity. Polθ/PARP-IN-1 induces apoptosis and cell cycle arrest in the G2/M phase, leading to DNA damage. Polθ/PARP-IN-1 displays antitumor activity.

Physicochemical Properties


Molecular Formula C38H33CLFN7O5S
Molecular Weight 754.23
Appearance Solid powder
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)

Biological Activity


ln Vitro Polθ/PARP-IN-1 (compound 25d) (0-80 µM; 3 days) showed antiproliferative activity against HCC1937, MDA-MB-436, HCT116, SW48, SKOV-3, and MCF-10A with IC50 values of 20.9, 2.7, 8.9, 2.9, 18.9, and >80 µM, respectively[1]. Polθ/PARP-IN-1 (compound 25d) (2 µM; 3 days) induced apoptosis and cell cycle arrest at the G2/M phase, leading to DNA damage[1]. Cell Proliferation Assay[1] Cell Line: HCC1937, MDA-MB-436, HCT116, SW48, SKOV-3, MCF-10A cells Concentration: 0-80 µM Incubation Time: 5 days Result: Showed antiproliferative activity with IC50s of 20.9, 2.7, 8.9, 2.9, 18.9, >80 µM for H CC1937, MDA-MB-436, HCT116, SW48, SKOV-3, MCF-10A cells, respectively. Apoptosis Analysis[1] Cell Line: MDA-MB-436 cells Concentration: 2 µM Incubation Time: 3 days Result: Induced apoptosis with a higher apoptosis rate (26.7%) and arrested cell cycle progression at the G2/M phase.
ln Vivo Polθ/PARP-IN-1 (20, 40 mg/kg; ip; daily for 21 consecutive days) inhibits tumor growth in the MDA-MB-436 xenograft model [1].
Animal Protocol Animal/Disease Models:18-20 g, Six-week-old female BALB/C nude mice (MDA-MB-436 xenograft model)[1]
Doses: 20, 40 mg/kg
Route of Administration: I.p.; daily for 21 consecutive days
Experimental Results: Significantly inhibited the growth of MDA-MB-436 xenografts in a dose-dependent manner, exerted an optimal inhibitory potency with a tumor growth inhibition (TGI) rate of 54.4%, 74.7% at 20, 40 mg/kg, respectively.
References

[1]. Discovery and Proof of Concept of Potent Dual Polθ/PARP Inhibitors for Efficient Treatment of Homologous Recombination-Deficient Tumors. J Med Chem. 2024 Feb 20.


Solubility Data


Solubility (In Vitro) DMSO : 50 mg/mL (66.29 mM; with sonication (<60°C))
Solubility (In Vivo) Solubility in Formulation 1: ≥ 2.5 mg/mL (3.31 mM)(Saturation unknown) in 10% DMSO 40% PEG300 5% Tween-80 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, add 100 μL of 25.0 mg/mL clear DMSO stock solution to 400 μL PEG300 and mix well; then add 50 μL Tween-80 to the above system and mix well; then add 450 μL saline to make up 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: ≥ 2.5 mg/mL (3.31 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, add 100 μL of 25.0 mg/mL clear DMSO stock solution to 900 μL corn oil and mix well. (Please use freshly prepared in vivo formulations for optimal results.)
Preparing Stock Solutions 1 mg 5 mg 10 mg
1 mM 1.3259 mL 6.6293 mL 13.2586 mL
5 mM 0.2652 mL 1.3259 mL 2.6517 mL
10 mM 0.1326 mL 0.6629 mL 1.3259 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.