Divergent Synthesis and Evaluation of the in?vitro Cytotoxicity Profiles of 3,4-Ethylenedioxythiophenyl-2-propen-1-one Analogues |
| |
Authors: | Dr Jayachandran Karunakaran Nachiappan Dhatchana?Moorthy Somenath Roy Chowdhury Saleem Iqbal Hemanta K Majumder Dr Krishnasamy Gunasekaran Dr Elangovan Vellaichamy Dr Arasambattu K Mohanakrishnan |
| |
Affiliation: | 1. Department of Organic Chemistry, School of Chemistry, University of Madras, Guindy Campus, Chennai, 600025 Tamil Nadu, India;2. Department of Biochemistry, University of Madras, Guindy Campus, Chennai, 600025 Tamil Nadu, India;3. Division of Infectious Diseases & Immunology, Indian Institute of Chemical Biology, 4, Raja S.?C. Mallick Road, Jadavpur, Kolkata, 700032 West Bengal, India;4. Center for Advanced studies in Crystallography & Biophysics, University of Madras, Guindy Campus, Chennai, 600025 Tamil Nadu, India |
| |
Abstract: | A new series of 3,4-ethylenedioxythiophene (EDOT)-appended propenones were prepared by condensation reaction and their in vitro cytotoxicity effects were evaluated against five human cancer cell lines. Preliminary structure–activity relationships of EDOT-incorporated 2-propenone derivatives were also established. The EDOT-appended enones demonstrated significant cytotoxicity against human cancer cell lines. The most active analogue, (E)-3-(2,3-dihydrothieno3,4-b]1,4]dioxin-5-yl)-1-(3,4,5-trimethoxyphenyl)prop-2-en-1-one ( 3 p , GI50=110 nm ), severely inhibited the clonogenic potential of cancer cells, and induced cell-cycle arrest in the G2/M phase and caused an accumulation of HCT116 colon cancer cells with >4 N DNA content. Also, 3 p exhibited weak inhibition of the enzymatic activity of human topoisomerase I. Molecular docking studies indicated preferential binding of the compounds to the ATP-binding pocket of the human checkpoint 2 kinase (Chk2) catalytic domain, thus, identifying a novel diaryl 2-propenone chemotype for the development of potent inhibitors of Chk2. |
| |
Keywords: | Chk2 inhibitors cytotoxicity G2/M cell-cycle arrest thiophenes topoisomerase?I inhibitors |
|
|