1. Cell Cycle/DNA Damage Epigenetics
  2. PARP
  3. PARP7-IN-18

PARP7-IN-18 is a potent, highly selective, and orally active PARP7 inhibitor with an IC50 of 0.11 nM. PARP7-IN-18 exhibits >1000-fold selectivity over other PARP family members. PARP7-IN-18 inhibits NCI-H1373 lung cancer cell proliferation with an IC50 of 2.5 nM and promotes IFN-β expression. PARP7-IN-18 exhibits favorable pharmacokinetic properties and can be used in research on PARP7-sensitive tumors, such as lung cancer.

For research use only. We do not sell to patients.

PARP7-IN-18

PARP7-IN-18 Chemical Structure

CAS No. : 2819999-00-1

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Description

PARP7-IN-18 is a potent, highly selective, and orally active PARP7 inhibitor with an IC50 of 0.11 nM. PARP7-IN-18 exhibits >1000-fold selectivity over other PARP family members. PARP7-IN-18 inhibits NCI-H1373 lung cancer cell proliferation with an IC50 of 2.5 nM and promotes IFN-β expression. PARP7-IN-18 exhibits favorable pharmacokinetic properties and can be used in research on PARP7-sensitive tumors, such as lung cancer[1].

IC50 & Target[1]

PARP7

0.11 nM (IC50)

Cellular Effect
Cell Line Type Value Description References
NCI-H1373 IC50
2.5 nM
Compound: 8
Antiproliferative activity against human NCI-H1373 cells incubated for 4 days by luminescence cell viability assay
Antiproliferative activity against human NCI-H1373 cells incubated for 4 days by luminescence cell viability assay
[PMID: 38277917]
RAW264.7 EC50
46 nM
Compound: 8
Upregulation of IFN-beta expression in mouse RAW264.7 cells incubated for 1 day by ELISA
Upregulation of IFN-beta expression in mouse RAW264.7 cells incubated for 1 day by ELISA
[PMID: 38277917]
In Vitro

PARP7-IN-18 (compound 8) inhibits PARP7 with an IC50 of 0.11 nM and shows high selectivity over PARP1, PARP2, PARP11, PARP12 and PARP14 (IC50 > 1000 nM)[1].
PARP7-IN-18 (0.64 nM-10 μM; 4 days) inhibits NCI-H1373 lung cancer cell proliferation, with an IC50 of 2.5 nM[1].
PARP7-IN-18 (0.64 nM-10 μM; 24 h) promotes IFN-β expression in RAW264.7 macrophages, with an EC50 of 46 nM[1].
PARP7-IN-18 shows moderate inhibitory activity against CYP2C9 with an IC50 of 1.2 μM, while only weakly inhibits CYP1A2, CYP2C19, CYP2D6 and CYP3A4[1].
PARP7-IN-18 inhibits hERG potassium channel with an IC50 of 6.8 μM, revealing potential chronic cardiac toxicity risk[1].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

Cell Proliferation Assay[1]

Cell Line: NCI-H1373
Concentration: 0.64 nM-10 µM
Incubation Time: 4 days
Result: Inhibited NCI-H1373 lung cancer cell proliferation with an IC50 value of 2.5 nM.

ELISA Assay[1]

Cell Line: RAW264.7 macrophages
Concentration: 0.64 nM-10 µM
Incubation Time: 24 h
Result: Promoted IFN-β expression with an EC50 value of 46 nM.
Parmacokinetics
Species Dose Route Tmax T1/2 AUC F Cmax CL Vss
Dog[1] 10 mg/kg p.o. 0.4 h 6.6 h 4.41 μg·h/mL 78 % 3490 μg/mL / /
Dog[1] 2 mg/kg i.v. / 0.6 h 1.14 μg·h/mL / / 29.5 mL/min/kg 1050 mL/kg
Mice[1] 10 mg/kg p.o. 0.3 h 1.9 h 3.43 μg·h/mL 104 % 1.73 μg/mL / /
Mice[1] 2 mg/kg i.v. / 0.4 h 0.66 μg·h/mL / / 51.4 mL/min/kg 681 mL/kg
Rat[1] 10 mg/kg p.o. 0.4 h 0.7 h 1.04 μg·h/mL 30 % 725 μg/mL / /
Rat[1] 2 mg/kg i.v. / 0.7 h 0.68 μg·h/mL / / 49.2 mL/min/kg 1770 mL/kg
In Vivo

PARP7-IN-18 (compound 8) (30 mg/kg; p.o.; once daily; for 21 days) has antitumor activity in NCI-H1373 tumor-bearing CB17 SCID nude mouse model[1].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

Animal Model: Female CB17 SCID nude mice subcutaneously inoculated with 0.1 mL of NCI-H1373 cells into the right back[1]
Dosage: 30 mg/kg
Administration: Oral gavage (p.o.); once daily; for 21 days
Result: Suppressed NCI-H1373 xenograft tumor growth.
Achieved tumor growth inhibition (TGI) of 81.6%.
Reduced tumor volume and dissected tumor weight compared with the vehicle group.
Molecular Weight

542.94

Formula

C23H26ClF3N6O4

CAS No.
SMILES

O=C1NN=CC(N2CC[C@H]2COCCC(N3C[C@H]4N(C5=C(OCC4)C=C(Cl)C=N5)CC3)=O)=C1C(F)(F)F

Shipping

Room temperature in continental US; may vary elsewhere.

Storage

Please store the product under the recommended conditions in the Certificate of Analysis.

Purity & Documentation
References
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Help & FAQs
  • Do most proteins show cross-species activity?

    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

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Product Name:
PARP7-IN-18
Cat. No.:
HY-162172
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