| Bioactivity | Ro 41-5253 is an orally active selective retinoic acid receptor alpha (RARα) antagonist. Ro 41-5253 can bind RARα without inducing transcription or affecting RAR/RXR heterodimerization and DNA binding. Ro 41-5253 can inhibit cancer cell proliferation and induce apoptosis, has antitumor activity[1][2]. |
| Target | IC50: 60 nM (RARα), 2.4 μM (RARβ), 3.3 μM (RARγ). |
| Invitro | Ro 41-5253 (1 nM-10 μM, 10 days) significantly inhibits MCF-7 and ZR 75.1 cell proliferation and induces cell apoptosis in a time and dose-dependent manner[1]. Cell Proliferation Assay[1] Cell Line: |
| In Vivo | Ro 41-5253 (oral gavage, 10-600 mg/kg, once a week, 4 weeks) can reduce tumor volume in female athymic Balb/mice transplanted with MCF-7 cell line[2]. Animal Model: |
| Name | Ro 41-5253 |
| CAS | 144092-31-9 |
| Formula | C28H36O5S |
| Molar Mass | 484.65 |
| Appearance | Solid |
| Transport | Room temperature in continental US; may vary elsewhere. |
| Storage | 4°C, sealed storage, away from moisture and light *In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture and light) |
| Reference | [1]. S Toma, et al. RARalpha antagonist Ro 41-5253 inhibits proliferation and induces apoptosis in breast-cancer cell lines. Int J Cancer. 1998 Sep 25;78(1):86-94 [2]. Salvatore Toma, et al. Retinoids and human breast cancer: in vivo effects of an antagonist for RAR-alpha. Cancer Lett. 2005 Feb 28;219(1):27-31. doi: 10.1016/j.canlet.2004.06.018. [3]. C Apfel, et al. A retinoic acid receptor alpha antagonist selectively counteracts retinoic acid effects. Proc Natl Acad Sci U S A. 1992 Aug 1;89(15):7129-33. |