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Updated: Jul 23, 2025

A Complete Pipeline for Isolating and Sequencing MicroRNAs, and Analyzing Them Using Open Source Tools
Published on: August 21, 2019
Promise and Perils of MicroRNA Discovery Research: Working Toward Quality Over Quantity
Emma K McIlwraith1, Wenyuan He1, Denise D Belsham1,2
1Department of Physiology, University of Toronto, Toronto, Ontario, M5S 1A8, Canada.
Abstract:
Since the first microRNA (miRNA) was described in 1993 in the humble worm Caenorhabditis elegans, the miRNA field has boomed, with more than 100 000 related patents filed and miRNAs now in ongoing clinical trials. Despite an advanced understanding of the biogenesis and action of miRNAs, applied miRNA research faces challenges and irreproducibility due to a lack of standardization. This review provides guidelines regarding miRNA investigation, while focusing on the pitfalls and considerations that are often overlooked in prevailing applied miRNA research. These include miRNA annotation and quantification, to modulation, target prediction, validation, and the study of circulating miRNAs.
Insights
MicroRNA research, while advanced, faces reproducibility issues due to lack of standardization. This review offers guidelines and highlights common pitfalls in microRNA (miRNA) studies for improved research quality.
Area of Science:
- Molecular Biology
- Genetics
- Biotechnology
Background:
- MicroRNA (miRNA) research has expanded significantly since 1993, with numerous patents and clinical trials.
- Despite advanced knowledge of miRNA biogenesis and function, applied research struggles with standardization and reproducibility.
- Challenges persist in areas like miRNA annotation, quantification, modulation, target prediction, validation, and circulating miRNA studies.
Approach:
- This review synthesizes current knowledge on miRNA research methodologies.
- It provides guidelines for conducting robust miRNA investigations.
- The focus is on identifying and addressing common pitfalls in applied miRNA research.
Key Points:
- Standardization is crucial for overcoming reproducibility challenges in applied miRNA research.
- Overlooked considerations in miRNA annotation, quantification, and target validation can impact results.
- Specific attention is given to the nuances of studying circulating miRNAs.
Conclusions:
- Implementing standardized protocols is essential for advancing the reliability of miRNA research.
- Addressing the identified pitfalls will enhance the quality and consistency of future miRNA studies.
- This review aims to guide researchers towards more reproducible and impactful miRNA investigations.
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