A series of isatin Schiff base derivatives were identified during in silk screening of the small molecule library for novel activators of p53. The compounds selected based on molecular docking results were further validated by a high-content screening assay using U2OS human osteosarcoma cells with an integrated EGFP-expressing p53-dependent reporter. The hit compounds activated and stabilized p53, as shown by Western blotting, at higher rates than the well-known positive control Nutlin-3. Thus, the p53-activating compounds identified by this approach represent useful molecular probes for various cancer studies.
A Study on Hydrolytic Stability of Isatin N-Mannich Bases
摘要:
Stability parameters of biologically active compounds with N-Mannich base motif in their structure, which is susceptible to hydrolysis, have been studied. A procedure for the synthesis of small molecule compounds reactivating the function of the p53 tumor suppressor protein was developed, and the dependence of the Mannich base degradation rate on the structure of the compounds was established. For the hydrolysis reaction we determined the rate constants and calculated rho, Delta G#, Delta H, and Delta S. Modifications of active compounds that retain the activity at the maximum possible stability were proposed.
[EN] ALDEHYDE DEHYDROGENASE INHIBITORS AND METHODS OF USE THEREOF<br/>[FR] INHIBITEURS D'ALDÉHYDE DÉSHYDROGÉNASE ET LEURS MÉTHODES D'UTILISATION
申请人:UNIV LELAND STANFORD JUNIOR
公开号:WO2015084731A1
公开(公告)日:2015-06-11
The present disclosure provides compounds that are selective inhibitors of an ALDH isozyme. The present disclosure provides treatment methods that involve use of the selective inhibitors.
A Study on Hydrolytic Stability of Isatin N-Mannich Bases
作者:D. D. Orlova、D. S. Novikova、A. V. Garabadzhiu、V. G. Tribulovich
DOI:10.1134/s1070363218010085
日期:2018.1
Stability parameters of biologically active compounds with N-Mannich base motif in their structure, which is susceptible to hydrolysis, have been studied. A procedure for the synthesis of small molecule compounds reactivating the function of the p53 tumor suppressor protein was developed, and the dependence of the Mannich base degradation rate on the structure of the compounds was established. For the hydrolysis reaction we determined the rate constants and calculated rho, Delta G#, Delta H, and Delta S. Modifications of active compounds that retain the activity at the maximum possible stability were proposed.
A series of isatin Schiff base derivatives were identified during in silk screening of the small molecule library for novel activators of p53. The compounds selected based on molecular docking results were further validated by a high-content screening assay using U2OS human osteosarcoma cells with an integrated EGFP-expressing p53-dependent reporter. The hit compounds activated and stabilized p53, as shown by Western blotting, at higher rates than the well-known positive control Nutlin-3. Thus, the p53-activating compounds identified by this approach represent useful molecular probes for various cancer studies.