Bioorganic and Medicinal Chemistry Letters p. 4347 - 4351 (2004)
Update date:2022-08-04
Topics:
Schultes, Christoph M.
Guyen, Berangere
Cuesta, Javier
Neidle, Stephen
Telomerase and telomere maintenance are emerging targets for the treatment of human cancers. We report here on the targeting of the telomere-telomerase complex with a series of small molecules based on an acridine platform. A series of 3,6-bisamidoacridines with extended 9-anilino sidechains were designed and synthesised as potential telomeric G-quadruplex DNA (G4) interacting compounds. G4-stabilisation was assessed using a high-throughput FRET (fluorescence resonance energy transfer) assay and telomerase inhibition quantified by a modified TRAP (telomerase repeat amplification protocol) method. Within the series, the compounds showed significant G4-stabilising ability (ΔT m values of 25-36°C at 1μM concentration) and telomerase inhibition in the nanomolar region (telEC50 values of 80-318nM). Furthermore, a direct correlation between the FRET and TRAP assays was observed, supporting the use of the rapid screening FRET assay for early assessment of potential G4-stabilising telomerase inhibitors.
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