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Novel G-Quadruplex Ligands: From Synthesis to Evaluation

A special issue of Molecules (ISSN 1420-3049). This special issue belongs to the section "Medicinal Chemistry".

Deadline for manuscript submissions: closed (5 December 2022) | Viewed by 2827

Special Issue Editor


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Guest Editor
Department of Chemistry, Universita degli Studi di Pavia, Pavia, Italy
Interests: G-quadruplex; selective functional tools; photoresponsive ligands; anticancer activity; antiviral activity

Special Issue Information

Dear Colleagues,

G-quadruplexes (G4s) are four-stranded nucleic acid structures that can fold into guanine-rich sequences. These polymorphous secondary structures have received much attention in medicinal chemistry thanks to their occurrence in key regions of the genome. Evidence suggests that G4s affect genomic instability, affect telomerase dysfunction, and behave as transcriptional repressor elements. Thus, targeting G4 structures has emerged as an alternative strategy for the potential treatment of many diseases. Following this observation, several G-quadruplex-binding molecules have been developed for therapeutic purposes. This Special Issue will focus on the rational design of new selective molecular ligands able to interact, stabilize, alkylate, and cleave G4s.

Dr. Filippo Doria
Guest Editor

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Keywords

  • G-quadruplex
  • selective ligands
  • chemotype diversity
  • functional tools
  • biophysical assay
  • biological activity

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Published Papers (1 paper)

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Research

17 pages, 3341 KiB  
Article
Arene Ru(II) Complexes Acted as Potential KRAS G-Quadruplex DNA Stabilizer Induced DNA Damage Mediated Apoptosis to Inhibit Breast Cancer Progress
by Jiayi Qian, Ruotong Liu, Ningzhi Liu, Chanling Yuan, Qiong Wu, Yanhua Chen, Weijun Tan and Wenjie Mei
Molecules 2022, 27(10), 3046; https://doi.org/10.3390/molecules27103046 - 10 May 2022
Cited by 7 | Viewed by 2425
Abstract
A series of arene Ru(II) complexes, [(η6-MeC6H5)Ru(L)Cl]Cl, (L=o-ClPIP, 1; m-ClPIP, 2 and p-ClPIP, 3) (o-ClPIP=2-(2-chlorophenyl)imidazo[4,5-f][1,10]phenanthroline; m-ClPIP=2-(3-chlorophenyl)imidazo[4,5-f][1,10]phenanthroline; p-ClPIP=2-(4-chlorophenyl)imidazo[4,5-f][1,10]phenanthroline) was synthesized and investigated as a potential apoptosis inducer [...] Read more.
A series of arene Ru(II) complexes, [(η6-MeC6H5)Ru(L)Cl]Cl, (L=o-ClPIP, 1; m-ClPIP, 2 and p-ClPIP, 3) (o-ClPIP=2-(2-chlorophenyl)imidazo[4,5-f][1,10]phenanthroline; m-ClPIP=2-(3-chlorophenyl)imidazo[4,5-f][1,10]phenanthroline; p-ClPIP=2-(4-chlorophenyl)imidazo[4,5-f][1,10]phenanthroline) was synthesized and investigated as a potential apoptosis inducer in chemotherapy. Spectroscopy and molecular docking simulations show that 1 exhibits moderated binding affinity to KRAS G-quadruplex DNA by groove mode. Further, in vitro studies reveal that 1 displays inhibitory activity against MCF-7 growth with IC50 = 3.7 ± 0.2 μM. Flow cytometric analysis, comet assay, and immunofluorescence confirm that 1 can induce the apoptosis of MCF-7 cells and G0/G1 phase arrest through DNA damage. In summary, the prepared arene Ru(II) complexes can be developed as a promising candidate for targeting G-quadruplex structure to induce the apoptosis of breast cancer cells via binding and stabilizing KRAS G-quadruplex conformation on oncogene promoter. Full article
(This article belongs to the Special Issue Novel G-Quadruplex Ligands: From Synthesis to Evaluation)
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