Upconversion Nanoparticle-Based Forster Resonance Energy Transfer for Detecting DNA Methylation
- Authors
- Kim, Seockjune; Hwang, Sang-Hyun; Im, Su-Gyeong; Lee, Min-Ki; Lee, Chang-Hun; Son, Sang Jun; Oh, Heung-Bum
- Issue Date
- Aug-2016
- Publisher
- MDPI AG
- Keywords
- DNA methylation; CDKN2A; upconversion nanoparticle; FRET; biosensing; MSP; pyrosequencing; MS-UC-FRET
- Citation
- SENSORS, v.16, no.8
- Journal Title
- SENSORS
- Volume
- 16
- Number
- 8
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/8042
- DOI
- 10.3390/s16081259
- ISSN
- 1424-8220
- Abstract
- Aberrant methylation of a crucial CpG island is the main mechanism for the inactivation of CDKN2A in the early stages of carcinogenesis. Therefore, the detection of DNA methylation with high sensitivity and specificity is important, and various detection methods have been developed. Recently, upconversion nanoparticles (UCNPs) have been found to display a high signal-to-noise ratio and no photobleaching, making them useful for diagnostic applications. In this pilot study, we applied UCNPs to the detection of CDKN2A methylation and evaluated the feasibility of this system for use in molecular diagnostics. DNA PCR was performed using biotinylated primers, and the PCR amplicon was then intercalated with SYTOX Orange dye, followed by incubation with streptavidin-conjugated UCNPs. Fluorescence detection of the Forster resonance energy transfer (FRET) of the UCNPs (MS-UC-FRET) was then performed, and the results were compared to those from real-time PCR (RQ-PCR) and pyrosequencing. Detection by MS-UC-FRET was more sensitive than that by either RQ-PCR or pyrosequencing. Our results confirmed the success of our MS-UC-FRET system for detecting DNA methylation and demonstrated the potential application of this system in molecular diagnostics.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - 바이오나노대학 > 나노화학과 > 1. Journal Articles
![qrcode](https://api.qrserver.com/v1/create-qr-code/?size=55x55&data=https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/8042)
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.