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Updated: Apr 26, 2026

MicroRNA Amplification and Recognition through Locked-nucleic-acid In situ Hybridization as a Novel Detection and Quantification Method
Published on: October 7, 2025
MicroRNAome genome: a treasure for cancer diagnosis and therapy
Ioana Berindan-Neagoe1, Paloma del C Monroig, Barbara Pasculli
1Department of Functional Genomics, The Oncology Institute, Research Center for Functional Genomics, Biomedicine and Translational Medicine, Department of Immunology, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania.
Abstract:
The interplay between abnormalities in genes coding for proteins and noncoding microRNAs (miRNAs) has been among the most exciting yet unexpected discoveries in oncology over the last decade. The complexity of this network has redefined cancer research as miRNAs, produced from what was once considered "genomic trash," have shown to be crucial for cancer initiation, progression, and dissemination. Naturally occurring miRNAs are very short transcripts that never produce a protein or amino acid chain, but act by regulating protein expression during cellular processes such as growth, development, and differentiation at the transcriptional, posttranscriptional, and/or translational level. In this review article, miRNAs are presented as ubiquitous players involved in all cancer hallmarks. The authors also describe the most used methods to detect their expression, which have revealed the identity of hundreds of miRNAs dysregulated in cancer cells or tumor microenvironment cells. Furthermore, the role of miRNAs as hormones and as reliable cancer biomarkers and predictors of treatment response is discussed. Along with this, the authors explore current strategies in designing miRNA-targeting therapeutics, as well as the associated challenges that research envisions to overcome. Finally, a new wave in molecular oncology translational research is introduced: the study of long noncoding RNAs.
Insights
MicroRNAs (miRNAs), once dismissed as "genomic trash," are now recognized as key regulators in cancer development and progression. This review explores their role in all cancer hallmarks, detection methods, and therapeutic potential.
Area of Science:
- Molecular Oncology
- Genomics
- Biochemistry
Background:
- The discovery of microRNAs (miRNAs) has revolutionized oncology, revealing their critical role in cancer initiation, progression, and metastasis.
- miRNAs are short, noncoding RNA molecules that regulate protein expression at multiple cellular levels, impacting growth, development, and differentiation.
Purpose of the Study:
- To review the multifaceted roles of miRNAs in all cancer hallmarks.
- To discuss current methods for detecting miRNA expression and their dysregulation in cancer.
- To explore the potential of miRNAs as biomarkers, predictors of treatment response, and therapeutic targets.
Main Methods:
- Literature review of studies on miRNA function in cancer.
- Analysis of various miRNA expression detection techniques.
- Examination of miRNA-targeting therapeutic strategies and challenges.
Main Results:
- miRNAs are integral to cancer initiation, progression, and dissemination, acting as ubiquitous players in all cancer hallmarks.
- Hundreds of dysregulated miRNAs have been identified in cancer cells and the tumor microenvironment.
- miRNAs show promise as cancer biomarkers and predictors of therapeutic outcomes.
Conclusions:
- miRNAs are crucial in cancer biology, offering significant potential for diagnostic and therapeutic applications.
- Current research focuses on developing miRNA-targeting drugs, with ongoing efforts to overcome associated challenges.
- Long noncoding RNAs represent a new frontier in molecular oncology translational research.
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