Highly sensitive and multiplexed one-step RT-qPCR for profiling genes involved in the circadian rhythm using microparticles

Mi Yeon Kim, Seungwon Jung, Junsun Kim, Heon Jeong Lee, Seunghwa Jeong, Sang Jun Sim, Sang Kyung Kim

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)


Given the growing interest in molecular diagnosis, highly extensive and selective detection of genetic targets from a very limited amount of samples is in high demand. We demonstrated the highly sensitive and multiplexed one-step RT-qPCR platform for RNA analysis using microparticles as individual reactors. Those particles are equipped with a controlled release system of thermo-responsive materials, and are able to capture RNA targets inside. The particle-based assay can successfully quantify multiple target RNAs from only 200 pg of total RNA. The assay can also quantify target RNAs from a single cell with the aid of a pre-concentration process. We carried out 8-plex one-step RT-qPCR using tens of microparticles, which allowed extensive mRNA profiling. The circadian cycles were shown by the multiplex one-step RT-qPCR in human cell and human hair follicles. Reliable 24-plex one-step RT-qPCR was developed using a single operation in a PCR chip without any loss of performance (i.e., selectivity and sensitivity), even from a single hair. Many other disease-related transcripts can be monitored using this versatile platform. It can also be used non–invasively for samples obtained in clinics.

Original languageEnglish
Article number6463
JournalScientific reports
Issue number1
Publication statusPublished - 2021 Dec

Bibliographical note

Funding Information:
Funding was provided by National Research Foundation of Korea (Grant Nos. 2016M3A9B6918639 and 2015R1A2A1A10055994).

Publisher Copyright:
© 2021, The Author(s).

ASJC Scopus subject areas

  • General


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