12 July 2017 Modified naphthalene diimide as a suitable tetraplex DNA ligand: application to cancer diagnosis and anti-cancer drug
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Proceedings Volume 10324, International Conference on Nano-Bio Sensing, Imaging, and Spectroscopy 2017; 103240G (2017); doi: 10.1117/12.2271575
Event: International Conference on Nano-Bio Sensing, Imaging, and Spectroscopy 2017, 2017, Jeju, Korea, Republic of
Abstract
It is known that naphthalene diimide carrying two substituents binds to DNA duplex with threading intercalation. Naphthalene diimide carrying ferrocene moieties, ferrocenylnaphthalene diimide (FND), formed a stable complex with DNA duplex and an electrochemical gene detection was achieved with current signal generated from FND bound to the DNA duplex between target DNA and DNA probe immobilized electrode. FND couldn’t bind to the mismatched and its surrounding region of DNA duplex and thus FND was applied to the precision detection of single nucleotide polymorphisms (SNPs) using the improved discrimination ability between fully matched and mismatched DNA hybrids and multi-electrode chip. Some of FND derivatives bound to telomere DNA tetraplex stronger than to DNA duplex and was applied to cancer diagnosis as a measure of the elongated telomere DNA with telomerase as a suitable maker of cancer. Furthermore, cyclic naphthalene diimides realized the extremely high preference for DNA tetraplex over DNA duplex. Such molecules will open an effective anti-cancer drug based on telomerase specific inhibitor.
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Shigeori Takenaka, "Modified naphthalene diimide as a suitable tetraplex DNA ligand: application to cancer diagnosis and anti-cancer drug", Proc. SPIE 10324, International Conference on Nano-Bio Sensing, Imaging, and Spectroscopy 2017, 103240G (12 July 2017); doi: 10.1117/12.2271575; http://dx.doi.org/10.1117/12.2271575
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KEYWORDS
Cancer

Electrodes

Molecules

Imaging spectroscopy

Ions

Potassium

Signal detection

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