Optimization of One Step Reverse Transcription Quantitative PCR Method for miRNA Expression Analyses

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Süsgün S., Karacan İ., Yücesan E.

Experimed, vol.11, no.2, pp.113-119, 2021 (Peer-Reviewed Journal)

  • Publication Type: Article / Article
  • Volume: 11 Issue: 2
  • Publication Date: 2021
  • Doi Number: 10.26650/experimed.2021.948146
  • Journal Name: Experimed
  • Journal Indexes: TR DİZİN (ULAKBİM)
  • Page Numbers: pp.113-119
  • Bezmialem Vakıf University Affiliated: Yes


Objective: We aimed to investigate and optimize the one step reverse transcription quantitative polymerase chain reaction (RT-qP-CR) method for specific detection and quantitation of two selected microRNA (miRNA)s, namely hsa-miR-145-5p and hsa-miR-146a-5p. Material and Method: RNA was extracted from HEK293T cell line. Primers were designed and experimentally optimized to be compatible with with one step RT-qPCR method for two selected miRNAs. Targeted amplicons were visualized with agarose gel electrophoresis and sequenced using the Sanger method for specificity verification. Results: High specificity of one step RT-qPCR amplification was demonstrated using melt curve and agarose gel electrophoresis analyses for both miRNA targets. It was shown that the earliest cycle threshold (Ct) values were obtained at the annealing temperature of 54°C. Also, target specificity was confirmed by conventional Sanger sequencing. Conclusion: In this study, one-step RT-qPCR design was optimized for both miRNA targets and target specificity was verified. Our study showed this approach to be a good candidate for miRNA detection and quantitation as a cost-effective alternative method. Furthermore, the approach is highly suitable for research projects as it is both low-cost and fast, involving less hands-on time.