Development of Hydrogel Microparticle based RT-qPCR for Advanced Detection of BCR-ABL1 Transcripts

Jung Min Kim, Won Jin Kim, Mi Yeon Kim, Kwang Pyo Kim, Sang Jun Sim, Sang Kyung Kim

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)


Reverse transcription – quantitative polymerase chain reaction (RT-qPCR) is conventionally used method to analyze oncogenes, infected DNAs, and mutated tumor associated genes. However it is hard to detect rare genetic targets since the disturbance of undesired amplification often overrides the reaction of very few targets in a myriad of interfering genes. To solve the limitation, we developed primerimmobilized network (PIN) probe RT-qPCR which can detect target RNA with high selectivity and sensitivity. To conduct PIN probe RT-qPCR with high efficiency, design of probe, concentration of immobilized probe and qPCR condition were optimized. The LOD of PIN probe RT-qPCR was 40pg per particle with 89.2% efficiency. When extremely low concentration of RNA was used, result of PIN probe RTqPCR was showed “on/off” signal. Also, target was confirmed only in the “on” particle. The interference effects by non-target PCR products were minimized by target-capturing and washing process in the RT. Using PIN probe RT-qPCR, we successfully detected target RNA in a sample which has a ratio of 1:100,000 (positive RNA : negative RNA).

Original languageEnglish
Pages (from-to)182-190
Number of pages9
JournalBiochip Journal
Issue number2
Publication statusPublished - 2019 Jun 1


  • Chronic myeloid leukemia
  • Hydrogel microparticle
  • N Real-time PCR
  • RT-qPCR
  • TaqMan probe

ASJC Scopus subject areas

  • Biotechnology
  • Bioengineering
  • Biomedical Engineering
  • Electrical and Electronic Engineering


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