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Updated: Jan 11, 2026

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High Throughput MicroRNA Profiling: Optimized Multiplex qRT-PCR at Nanoliter Scale on the Fluidigm Dynamic ArrayTM IFCs
Published on: August 3, 2011
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Accurate quantification of human miRNA isoforms using the PROMER technology.
Young-Hyean Nam1, Taeho Kwak2, Saemi Jeon2
1NuriBio Co., Ltd, Anyang-si, Gyeonggi-Do, 14058, Republic of Korea; College of Pharmacy, Kangwon National University, 1 Kangwondaehakgil, Chuncheon, 24341, Republic of Korea.
Biochemical and Biophysical Research Communications
|November 12, 2025
Summary
MicroRNAs (miRNAs) and their variants, isomiRs, regulate gene expression. We developed a new qRT-PCR technique to distinguish isomiRs, crucial for understanding disease and developing therapies.
Area of Science:
- Molecular Biology
- Genetics
- Biochemistry
Background:
- MicroRNAs (miRNAs) are key post-transcriptional gene regulators.
- IsomiRs, miRNA sequence variants, exhibit differential expression in development and disease.
- Understanding isomiR diversity is vital for miRNA-based diagnostics and therapeutics.
Purpose of the Study:
- To develop an innovative qRT-PCR technique for distinguishing isomiRs.
- To build upon the previously reported PROMER technology for enhanced miRNA analysis.
Main Methods:
- Utilized a quantitative reverse transcription PCR (qRT-PCR) approach.
- Integrated the PROMER technology involving RNA:DNA matching and RNase H2 cleavage.
- Developed a novel method for precise isomiR differentiation.
Main Results:
- Successfully established a qRT-PCR-based technique to differentiate various isomiRs.
- The method builds upon the principles of PROMER technology for accurate measurement.
- Demonstrated the capability to distinguish sequence variants of miRNAs.
Conclusions:
- The developed qRT-PCR technique offers a novel approach for isomiR analysis.
- This advancement is critical for studying miRNA function and disease mechanisms.
- Facilitates the development of more precise miRNA-based diagnostics and therapeutics.
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