| RK-33DDX3 (a RNA helicase) inhibitor |

Sample solution is provided at 25 µL, 10mM.
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- Purity = 99.86%
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- NMR (Nuclear Magnetic Resonance)
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Chemical structure


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| Cas No. | 1070773-09-9 | SDF | Download SDF |
| Chemical Name | 3,7-bis(4-methoxybenzyl)-3,7-dihydro-2H-diimidazo[4,5-d:4",5"-f][1,3]diazepin-2-one | ||
| Canonical SMILES | COC1=CC=C(CN2C=NC3=C2N=CN=C(N4CC5=CC=C(OC)C=C5)C3=NC4=O)C=C1 | ||
| Formula | C23H20N6O3 | M.Wt | 428.44 |
| Solubility | ≥21.4mg/mL in DMSO | Storage | Store at -20°C |
| Physical Appearance | A solid | Shipping Condition | Evaluation sample solution : ship with blue ice.All other available size:ship with RT , or blue ice upon request |
| General tips | For obtaining a higher solubility , please warm the tube at 37 ℃ and shake it in the ultrasonic bath for a while.Stock solution can be stored below -20℃ for several months. | ||
IC50: 4.4-8.4 μM for cancer cell lines with high levels of DDX3 expression (A549, H1299, H23, and H460)
RK-33 is a DDX3 inhibitor.
DDX3 has been identified as a RNA helicase that is overexpressed in various cancer types such as lung cancer and is correlated with lower survival in lung cancer patients.
In vitro: RK-33 was reported to bind to DDX3 and abrogated its activity. Inhibition of DDX3 by RK-33 resulted in G1 cell cycle arrest, induced apoptosis, and promoted radiation sensitization in DDX3-overexpressing cells. Moreover, the loss of DDX3 function caused by RK-33 impaired Wnt signaling via disruption of the DDX3-β-catenin axis [1].
In vivo: The effect of RK-33 with a fractional dosing regimen was studied in the Twist1/KrasG12D lung cancer model. Results showed that during the 3 weeks treatment, a modest decrease in tumor growth with radiation and even more so with the combination of RK-33 and radiation. Therefore, these data indicated that RK-33 in combination with hypofractionated radiationwas able to decrease lung tumor load effectively in preclinical lung cancer models and performed much better than the commonly used radiosensitizer carboplatin [1].
Clinical trial: Up to now, RK-33 is still in the preclinical development stage.
Reference:[1] Bol GM et al. Targeting DDX3 with a small molecule inhibitor for lung cancer therapy. EMBO Mol Med. 2015 Mar 27;7(5):648-69.
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个人感觉这个就是厂家的一个噱头,,,听说有人已经在无抗猪肉中发现抗药性细菌,不知是真是假,不过要买的话一定要去信誉的地方。
以上回答,希望对你有用。

