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Updated: May 7, 2026

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
Gianpiero Di Leva1, Michela Garofalo, Carlo M Croce
1Department of Molecular Virology, Immunology, and Medical Genetics, Comprehensive Cancer Center, The Ohio State University, Columbus, Ohio 43210; email: michela.garofalo@osumc.edu , carlo.croce@osumc.edu.
Abstract:
MicroRNAs (miRNAs) are small noncoding RNAs that typically inhibit the translation and stability of messenger RNAs (mRNAs), controlling genes involved in cellular processes such as inflammation, cell-cycle regulation, stress response, differentiation, apoptosis, and migration. Thus, miRNAs have been implicated in the regulation of virtually all signaling circuits within a cell, and their dysregulation has been shown to play an essential role in the development and progression of cancer. Here, after a brief description of miRNA genomics, biogenesis, and function, we discuss the effects of miRNA dysregulation in the cellular pathways that lead to the progressive conversion of normal cells into cancer cells and the potential to develop new molecular miRNA-targeted therapies.
Insights
MicroRNAs (miRNAs) regulate gene expression and are crucial in cellular processes. Their dysregulation is linked to cancer development, highlighting potential for targeted therapies.
Area of Science:
- Molecular Biology
- Genetics
- Cancer Research
Background:
- MicroRNAs (miRNAs) are small noncoding RNAs regulating gene expression by inhibiting mRNA translation and stability.
- miRNAs control fundamental cellular processes including inflammation, cell-cycle regulation, stress response, differentiation, apoptosis, and migration.
- Dysregulation of miRNA activity is implicated in the development and progression of various cancers.
Purpose of the Study:
- To provide a brief overview of miRNA genomics, biogenesis, and function.
- To discuss the impact of miRNA dysregulation on cellular pathways driving cancer.
- To explore the potential of miRNA-targeted therapies for cancer treatment.
Main Methods:
- Review of existing literature on miRNA biology and cancer.
- Analysis of cellular pathways affected by miRNA dysregulation.
- Discussion of current and emerging miRNA-targeted therapeutic strategies.
Main Results:
- miRNAs are integral regulators of nearly all intracellular signaling circuits.
- Aberrant miRNA expression patterns are a hallmark of cancer cells.
- Specific miRNAs can promote or suppress tumor development depending on their targets.
Conclusions:
- Understanding miRNA function and dysregulation is key to comprehending cancer biology.
- miRNA-based molecular therapies offer promising avenues for cancer treatment.
- Further research into miRNA genomics and targeted interventions is warranted.
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