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PROTAC PARP2 degrader-1

Cat No.:V143373 Purity: ≥98%
PROTAC PARP2 degrader-1 is an orally effective PARP2 PROTAC degrader with a median lethal concentration (DC50) of 2 μM.
PROTAC PARP2 degrader-1
PROTAC PARP2 degrader-1 Chemical Structure CAS No.: 2925182-32-5
Product category: PARP
This product is for research use only, not for human use. We do not sell to patients.
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Product Description
PROTAC PARP2 degrader-1 is an orally effective PROTAC degrader of PARP2 with a median lethal concentration (DC50) of 2 μM. PROTAC PARP2 degrader-1 effectively inhibits the enzymatic activities of PARP1 (IC50 = 2.74 nM) and PARP2 (IC50 = 0.32 nM), exhibiting approximately 10-fold higher selectivity for PARP2 than for PARP1. PROTAC PARP2 degrader-1 induces cell cycle arrest and apoptosis, and demonstrates significant antitumor efficacy in mouse models. PROTAC PARP2 degrader-1 can be used in research on triple-negative breast cancer. (Pink: PARP-2 ligand; Blue: Cereblon ligand; Black: Linker)
Biological Activity I Assay Protocols (From Reference)
ln Vitro
PROTAC PARP2 degrader-1 (compound C8) (5-10 days of treatment) effectively inhibited the proliferation of MDA-MB-436, Capan-1, MDA-MB-468 and MDA-MB-231 cells, with IC50 values of 0.026 μM, 0.061 μM, 0.69 μM and 0.53 μM, respectively. In addition, its activity in non-BRCA mutant triple-negative breast cancer (TNBC) cells was significantly higher than that of olaparib [1]. PROTAC PARP2 degrader-1 (C8) (0.5 μM; 24 hours of treatment) selectively degraded PARP2 in the nucleus of MDA-MB-231 cells without affecting the level of cytoplasmic PARP2 [1]. PROTAC PARP2 degrader-1 (0.312-5 μM; 14 days of treatment) effectively and dose-dependently inhibited the colony formation of MDA-MB-231 cells [1]. PROTAC PARP2 degrader-1 (0.156–2.5 μM; 24–48 h) induced dose-dependent G2/M phase cell cycle arrest in MDA-MB-436 and MDA-MB-231 cells [1]. PROTAC PARP2 degrader-1 (C8) (0.312–5 μM; 48–72 h) induced dose-dependent apoptosis in MDA-MB-436 and MDA-MB-231 cells, and compared with olaparib [1].
ln Vivo
PROTAC PARP2 degrader-1 (compound C8) (12.5–100 mg/kg; ig, ip; 21 days) dose-dependently inhibited the growth of MDA-MB-231 TNBC xenografts [1].
Cell Assay
Immunofluorescence [1]
Cell Types: MDA-MB-231 (wild-type) triple-negative breast cancer cells
Tested Concentrations: 0.5 μM
Incubation Duration: 24 hours
Experimental Results: The nuclear PARP2 was almost completely degraded, while the cytoplasmic PARP2 fluorescence remained unchanged. Compared with the inactive analogue C8-M, it had no effect on the PARP2 levels in both compartments.
Animal Protocol
Animal/Disease Models:BALB/c nude mice (female, 5-6 weeks old, subcutaneous xenograft model) [1]
Doses: 100 mg/kg (gavage); 12.5 mg/kg (intraperitoneal injection); 25 mg/kg (intraperitoneal injection)
Route of Administration: Gavage; Intraperitoneal injection; Daily; 21 days
Experimental Results: The tumor growth inhibition rate (TGI) in the 100 mg/kg gavage group was 63.5%. The tumor growth inhibition rate (TGI) in the 12.5 mg/kg intraperitoneal injection group was 82.9%. The tumor growth inhibition rate (TGI) in the 25 mg/kg intraperitoneal injection group was 98.3%. No significant weight loss, morbidity, or mortality was observed during the 21-day treatment period. No significant histopathological lesions were observed in the heart, liver, spleen, kidneys, and lungs after intraperitoneal injection of 25 mg/kg.
References

[1]. Selective degradation of PARP2 by PROTACs via recruiting DCAF16 for triple-negative breast cancer. Eur J Med Chem. 2022;236:114321.

These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C43H50CLFN6O6
Molecular Weight
801.35
CAS #
2925182-32-5
Appearance
Typically exists as solids at room temperature
SMILES
O=C1NN=C(CC2=CC=C(C(C(N3CCN(CC3)C(CCCCCCCCCNC(COC4=CC=C5C(CCCN5C(CCl)=O)=C4)=O)=O)=O)=C2)F)C6=C1C=CC=C6
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)
May dissolve in DMSO (in most cases), if not, try other solvents such as H2O, Ethanol, or DMF with a minute amount of products to avoid loss of samples
Solubility (In Vivo)
Note: Listed below are some common formulations that may be used to formulate products with low water solubility (e.g. < 1 mg/mL), you may test these formulations using a minute amount of products to avoid loss of samples.

Injection Formulations
(e.g. IP/IV/IM/SC)
Injection Formulation 1: DMSO : Tween 80: Saline = 10 : 5 : 85 (i.e. 100 μL DMSO stock solution 50 μL Tween 80 850 μL Saline)
*Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH ₂ O to obtain a clear solution.
Injection Formulation 2: DMSO : PEG300Tween 80 : Saline = 10 : 40 : 5 : 45 (i.e. 100 μL DMSO 400 μLPEG300 50 μL Tween 80 450 μL Saline)
Injection Formulation 3: DMSO : Corn oil = 10 : 90 (i.e. 100 μL DMSO 900 μL Corn oil)
Example: Take the Injection Formulation 3 (DMSO : Corn oil = 10 : 90) as an example, if 1 mL of 2.5 mg/mL working solution is to be prepared, you can take 100 μL 25 mg/mL DMSO stock solution and add to 900 μL corn oil, mix well to obtain a clear or suspension solution (2.5 mg/mL, ready for use in animals).
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Injection Formulation 4: DMSO : 20% SBE-β-CD in saline = 10 : 90 [i.e. 100 μL DMSO 900 μL (20% SBE-β-CD in saline)]
*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.
Injection Formulation 5: 2-Hydroxypropyl-β-cyclodextrin : Saline = 50 : 50 (i.e. 500 μL 2-Hydroxypropyl-β-cyclodextrin 500 μL Saline)
Injection Formulation 6: DMSO : PEG300 : castor oil : Saline = 5 : 10 : 20 : 65 (i.e. 50 μL DMSO 100 μLPEG300 200 μL castor oil 650 μL Saline)
Injection Formulation 7: Ethanol : Cremophor : Saline = 10: 10 : 80 (i.e. 100 μL Ethanol 100 μL Cremophor 800 μL Saline)
Injection Formulation 8: Dissolve in Cremophor/Ethanol (50 : 50), then diluted by Saline
Injection Formulation 9: EtOH : Corn oil = 10 : 90 (i.e. 100 μL EtOH 900 μL Corn oil)
Injection Formulation 10: EtOH : PEG300Tween 80 : Saline = 10 : 40 : 5 : 45 (i.e. 100 μL EtOH 400 μLPEG300 50 μL Tween 80 450 μL Saline)


Oral Formulations
Oral Formulation 1: Suspend in 0.5% CMC Na (carboxymethylcellulose sodium)
Oral Formulation 2: Suspend in 0.5% Carboxymethyl cellulose
Example: Take the Oral Formulation 1 (Suspend in 0.5% CMC Na) as an example, if 100 mL of 2.5 mg/mL working solution is to be prepared, you can first prepare 0.5% CMC Na solution by measuring 0.5 g CMC Na and dissolve it in 100 mL ddH2O to obtain a clear solution; then add 250 mg of the product to 100 mL 0.5% CMC Na solution, to make the suspension solution (2.5 mg/mL, ready for use in animals).
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Oral Formulation 3: Dissolved in PEG400
Oral Formulation 4: Suspend in 0.2% Carboxymethyl cellulose
Oral Formulation 5: Dissolve in 0.25% Tween 80 and 0.5% Carboxymethyl cellulose
Oral Formulation 6: Mixing with food powders


Note: Please be aware that the above formulations are for reference only. InvivoChem strongly recommends customers to read literature methods/protocols carefully before determining which formulation you should use for in vivo studies, as different compounds have different solubility properties and have to be formulated differently.

 (Please use freshly prepared in vivo formulations for optimal results.)
Preparing Stock Solutions 1 mg 5 mg 10 mg
1 mM 1.2479 mL 6.2395 mL 12.4789 mL
5 mM 0.2496 mL 1.2479 mL 2.4958 mL
10 mM 0.1248 mL 0.6239 mL 1.2479 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.

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