Synthesis and evaluation of modified chalcone based p53 stabilizing agents
Emwas, Abdul-Hamid M.
Chotana, Ghayoor Abbas
Saleem, Rahman Shah Zaib
MetadataShow full item record
AbstractTumor suppressor protein p53 induces cell cycle arrest and apoptotic cell death in response to various cellular stresses thereby preventing cancer development. Activation and stabilization of p53 through small organic molecules is, therefore, an attractive approach for the treatment of cancers retaining wild-type p53. In this context, a series of nineteen chalcones with various substitution patterns of functional groups including chloro, fluoro, methoxy, nitro, benzyloxy, 4-methyl benzyloxy was prepared using Claisen-Schmidt condensation. The compounds were characterized using NMR, HRMS, IR and melting points. Evaluation of synthesized compounds against human colorectal (HCT116) and breast (Cal-51) cancer cell lines revealed potent antiproliferative activities. Nine compounds displayed GI50 values in the low micromolar to submicromolar range; for example (E)-1-phenyl-3-(3,4,5-trimethoxyphenyl)prop-2-en-1-one (SSE14108) showed GI50 of 0.473 ± 0.043 µM against HCT116 cells. Further analysis of these compounds revealed that (E)-3-(4-chlorophenyl)-1-phenylprop-2-en-1-one (SSE14105) and (E)-3-(4-methoxyphenyl)-1-phenylprop-2-en-1-one (SSE14106) caused rapid (4 and 8-hour post-treatment) accumulation of p53 in HCT116 cells similar to its induction by positive control, Nutlin-3. Such activities were absent in 3-(4-methoxyphenyl)propiophenone (SSE14106H2) demonstrating the importance of conjugated ketone for antiproliferative and p53 stabilizing activity of the chalcones. We further evaluated p53 levels in the presence of cycloheximide (CHX) and the results showed that the p53 stabilization was regulated at post-translational level through blockage of its degradation. These chalcones can, therefore, act as fragment leads for further structure optimization to obtain more potent p53 stabilizing agents with enhanced anti-proliferative activities.
CitationIftikhar S, Khan S, Bilal A, Manzoor S, Abdullah M, et al. (2017) Synthesis and evaluation of modified chalcone based p53 stabilizing agents. Bioorganic & Medicinal Chemistry Letters. Available: http://dx.doi.org/10.1016/j.bmcl.2017.07.042.
SponsorsAuthors acknowledge the support by LUMS in the form of faculty initiative fund to enable this research work and extend our acknowledgement to KAUST for NMR and HRMS analysis.
- Synthesis and anti-proliferative activity of fluoro-substituted chalcones.
- Authors: Burmaoglu S, Algul O, Anıl DA, Gobek A, Duran GG, Ersan RH, Duran N
- Issue date: 2016 Jul 1
- Anti-breast cancer activity of heteroaryl chalcone derivatives.
- Authors: Solomon VR, Lee H
- Issue date: 2012 Apr
- Design and multi-step synthesis of chalcone-polyamine conjugates as potent antiproliferative agents.
- Authors: Rioux B, Pouget C, Fidanzi-Dugas C, Gamond A, Laurent A, Semaan J, Pinon A, Champavier Y, Léger DY, Liagre B, Duroux JL, Fagnère C, Sol V
- Issue date: 2017 Sep 15
- Synthesis and biological evaluation of novel synthetic chalcone derivatives as anti-tumor agents targeting Cat L and Cat K.
- Authors: Wang Y, Xue S, Li R, Zheng Z, Yi H, Li Z
- Issue date: 2018 Jan 1
- Anti-proliferative effect of chalcone derivatives through inactivation of NF-κB in human cancer cells.
- Authors: Venkateswararao E, Sharma VK, Yun J, Kim Y, Jung SH
- Issue date: 2014 Jul 1