Edyta Łukowska-Chojnacka, Egor Fedorov, Anna Kowalkowska, Monika Wielechowska, Anna Sobiepanek, Mirosława Koronkiewicz, Patrycja Wińska
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引用次数: 0
Abstract
An efficient method for the synthesis of new 4,5,6,7-tetrabromo-1H-benzimidazole derivatives has been developed. New ketones were obtained by N-alkylation of TBBi or 2-Me-TBBi with various phenacyl halides and then reduced to the corresponding alcohols. All compounds were obtained with satisfactory yields in the range of 40-91 %. The synthesized compounds appeared a weak CK2 and PIM-1 inhibitors but exhibit an interesting cytotoxic activity against cancer cell lines, i.e. MCF-7, PC-3, CCRF-CEM, K-562. 1-Phenyl-2-(4,5,6,7-tetrabromo-1H-benzimidazol-1-yl)ethanone 3aA exhibits the highest cytotoxic activity with IC50 value of 5.30 µM for MCF-7 and 6.80 µM for CCRF-CEM. Moreover, this compound shows the highest selectivity against both MCF-7 and CCRF-CEM with SI selectivity coefficients (against MRC-5 and Vero cells) equal 5.45 and 4.30 for MCF-7 and 4.25 and 3.35 for CCRF-CEM, respectively. Furthermore, it was shown that compound 3aA exhibits very good pro-apoptotic properties, through induction of the mitochondrial apoptotic pathway in CCRF-CEM cells. These results correlate with data showing the effect of 3aA on intracellular level of CK2α protein and CK2-mediated phosphorylation of Ser529 in NF-κBp65. Study of the effect of compound 3aA on mRNA levels of CK2α and CK2α' showed no significant differences in gene expression levels in control CCRF-CEM and cells treated with 3aA, indicating 3aA action at the protein level.
期刊介绍:
Bioorganic Chemistry publishes research that addresses biological questions at the molecular level, using organic chemistry and principles of physical organic chemistry. The scope of the journal covers a range of topics at the organic chemistry-biology interface, including: enzyme catalysis, biotransformation and enzyme inhibition; nucleic acids chemistry; medicinal chemistry; natural product chemistry, natural product synthesis and natural product biosynthesis; antimicrobial agents; lipid and peptide chemistry; biophysical chemistry; biological probes; bio-orthogonal chemistry and biomimetic chemistry.
For manuscripts dealing with synthetic bioactive compounds, the Journal requires that the molecular target of the compounds described must be known, and must be demonstrated experimentally in the manuscript. For studies involving natural products, if the molecular target is unknown, some data beyond simple cell-based toxicity studies to provide insight into the mechanism of action is required. Studies supported by molecular docking are welcome, but must be supported by experimental data. The Journal does not consider manuscripts that are purely theoretical or computational in nature.
The Journal publishes regular articles, short communications and reviews. Reviews are normally invited by Editors or Editorial Board members. Authors of unsolicited reviews should first contact an Editor or Editorial Board member to determine whether the proposed article is within the scope of the Journal.