- Small-molecule inhibitors of the MDM2-p53 protein-protein interaction based on an isoindolinone scaffold
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From a set of weakly potent lead compounds, using in silico screening and small library synthesis, a series of 2-alkyl-3-aryl-3-alkoxyisoindolinones has been identified as inhibitors of the MDM2-p53 interaction. Two of the most potent compounds, 2-benzyl-3-(4-chlorophenyl)-3-(3-hydroxypropoxy)-2,3- dihydroisoindol-1-one (76; IC50 = 15.9 ± 0.8 μM) and 3-(4-chlorophenyl)-3-(4-hydroxy-3,5-dimethoxybenzyloxy)-2-propyl-2, 3-dihydroisoindol-1-one (79; IC50 = 5.3 ± 0.9 μM), induced p53-dependent gene transcription, in a dose-dependent manner, in the MDM2 amplified, SJSA human sarcoma cell line.
- Hardcastle, Ian R.,Ahmed, Shafiq U.,Atkins, Helen,Farnie, Gillian,Golding, Bernard T.,Griffin, Roger J.,Guyenne, Sabrina,Hutton, Claire,K?llblad, Per,Kemp, Stuart J.,Kitching, Martin S.,Newell, David R.,Norbedo, Stefano,Northen, Julian S.,Reid, Rebecca J.,Saravanan,Willems, Henri?tte M. G.,Lunec, John
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