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MicroRNA Amplification and Recognition through Locked-nucleic-acid In situ Hybridization as a Novel Detection and Quantification Method
Published on: October 7, 2025
MicroRNAs in Cancer: A Historical Perspective on the Path from Discovery to Therapy
Esteban A Orellana1,2, Andrea L Kasinski3
1Department of Biological Sciences, Bindley Bioscience Center, Purdue University, 1203 West State Street, West Lafayette, IN 47907, USA.
Abstract:
Recent progress in microRNA (miRNA) therapeutics has been strongly dependent on multiple seminal discoveries in the area of miRNA biology during the past two decades. In this review, we focus on the historical discoveries that collectively led to transitioning miRNAs into the clinic. We highlight the pivotal studies that identified the first miRNAs in Caenorhabditis elegans to the more recent reports that have fueled the quest to understand the use of miRNAs as markers for cancer diagnosis and prognosis. In addition, we provide insights as to how unraveling basic miRNA biology has provided a solid foundation for advancing miRNAs, such as miR-34a, therapeutically. We conclude with a brief examination of the current challenges that still need to be addressed to accelerate the path of miRNAs to the clinic: including delivery vehicles, miRNA- and delivery-associated toxicity, dosage, and off target effects.
Insights
Recent microRNA (miRNA) discoveries have paved the way for clinical applications. This review highlights key historical findings and current challenges in advancing miRNA therapeutics for diseases like cancer.
Area of Science:
- Molecular Biology
- Genetics
- Biochemistry
Background:
- MicroRNA (miRNA) research has advanced significantly over the last 20 years.
- These advancements are crucial for the development of miRNA therapeutics.
- Understanding miRNA biology is key to their clinical translation.
Purpose of the Study:
- To review the historical discoveries that enabled miRNA therapeutics.
- To highlight pivotal studies in miRNA identification and application.
- To discuss the role of miRNA biology in therapeutic development.
Main Methods:
- Literature review of seminal studies in miRNA biology.
- Analysis of historical progression from basic research to clinical translation.
- Examination of key miRNA therapeutic candidates, such as miR-34a.
Main Results:
- Key discoveries in miRNA biology have directly led to therapeutic potential.
- miRNAs are emerging as valuable biomarkers for cancer diagnosis and prognosis.
- Basic research has provided a foundation for advancing specific miRNAs, like miR-34a, therapeutically.
Conclusions:
- The transition of miRNAs to the clinic is built upon decades of biological discoveries.
- Significant challenges remain, including delivery, toxicity, dosage, and off-target effects.
- Addressing these challenges is essential to accelerate miRNA therapeutic development.
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