Ro 90-7501 is an amyloid β42 (Aβ42) fibril assembly inhibitor that reduces Aβ42-induced cytotoxicity (EC50 of 2 μM). Ro 90-7501 inhibits ATM phosphorylation and DNA repair. RO 90-7501 selectively enhances toll-like receptor 3 (TLR3) and RIG-I-like receptor (RLR) ligand-induced IFN-β gene expression and antiviral response. Ro 90-7501 also inhibits protein phosphatase 5 (PP5) in a TPR-dependent manner. Ro 90-7501 has significant radiosensitizing effects on cervical cancer cells.
CAS Number: 293762-45-5
Molecular Weight: 340.38
Chemical Name: 2-[2-(4-aminophenyl)-1H-1, 3-benzodiazol-5-yl]-1H-1, 3-benzodiazol-5-amine
Appearance: Solid Power
Purity: ≥98% (or refer to the Certificate of Analysis)
Solubility: DMSO : 41.67 mg/mL (122.42 mM; Need ultrasonic)
Shipping Condition: Shipped under ambient temperature as non-hazardous chemical or refer to Certificate of Analysis
Storage Condition: Dry, dark and -20 oC for 1 year or refer to the Certificate of Analysis.
Shelf Life: ≥360 days if stored properly.
Stock Solution Storage: 0 - 4 oC for 1 month or refer to the Certificate of Analysis.
Drug Formulation: To be determined
HS Tariff Code: 382200
How to use
Ro 90-7501 significantly enhances radiosensitivity compared with control HeLa and ME-180 cells. Ro 90-7501 significantly increases apoptosis and impaired cell cycle after irradiation. Ro 90-7501 suppresses the phosphorylation of ATM and its downstream proteins, such as H2AX, Chk1, and Chk2, after irradiation. RO 90-7501, itself affects neither IFN-β nor NFκB promoter activity, but significantly enhances poly I:C-induced IFN-β promoter activation and inhibits the activation of NFκB in a dose-dependent manner. Treatment of cells with RO 90-7501 significantly enhances the antiviral activity of poly I:C.
Ro 90-7501 (5 μg/g; intraperitoneal injection; daily; for 21 days; female BALB/c nude mice) treatment significantly delays tumor growth and significantly decreases tumor volume.
- Tamari K, et al. Ro 90-7501 Is a Novel Radiosensitizer for Cervical Cancer Cells that Inhibits ATM Phosphorylation. Anticancer Res. 2019 Sep;39(9):4805-4810.
- Guo F, et al. RO 90-7501 enhances TLR3 and RLR agonist induced antiviral response. PLoS One. 2012;7(10):e42583.
- Hong TJ, et al. Ro 90-7501 inhibits PP5 through a novel, TPR-dependent mechanism. Biochem Biophys Res Commun. 2017 Jan 8;482(2):215-220.
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