Use of an automated capillary DNA sequencer to investigate the interaction of cisplatin with telomeric DNA sequences

作者：Paul Moumita; Murray Vincent^*

来源：Biomedical Chromatography, 2012, 26(3): 350-354.

DOI：10.1002/bmc.1664

• cisplatin
• telomere
• DNA damage
• DNA sequence selectivity

The determination of the sequence selectivity of DNA-damaging agents is very important in elucidating the mechanism of action of anti-tumour drugs. The development of automated capillary DNA sequencers with fluorescent labelling has enabled a more precise method for DNA sequence specificity analysis. In this work we utilized the ABI 3730 capillary sequencer with laser-induced fluorescence to examine the sequence selectivity of cisplatin with purified DNA sequences. The use of this automated machine enabled a higher degree of precision of both position and intensity of cisplatinDNA adducts than previously possible with manual and automated slab gel procedures. A problem with artefact bands was overcome by ethanol precipitation. It was found that cisplatin strongly formed adducts with telomeric DNA sequences.

• 出版日期2012-3