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Updated: May 9, 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 and cancer therapy - from bystanders to major players
Cornelia Braicu1, George A Calin, Ioana Berindan-Neagoe
1Research Center for Functional Genomics, Biomedicine and Translational Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania.
Abstract:
MicroRNAs (miRNAs) are an evolutionarily conserved class of small regulatory RNAs that modulate gene expression. Extensive research over the last decade has shown that miRNAs are master regulators of cellular processes, with an essential role in cancer initiation, progression, and metastasis. Widespread deregulation of miRNAs in cancers has identified oncogenic and tumor-suppressive roles for these miRNAs. On the basis of these observations, miRNAs have emerged as promising therapeutic tools for cancer management. In this review, we focus on the roles of miRNAs in tumorigenesis, the rationale and strategies for the use of miRNA-based therapy for cancer, and the advantages and current challenges to their use.
Insights
MicroRNAs (miRNAs) regulate gene expression and are key in cancer. This review explores their roles in tumorigenesis and potential as cancer therapeutics, discussing strategies, benefits, and challenges.
Area of Science:
- Molecular Biology
- Genetics
- Oncology
Background:
- MicroRNAs (miRNAs) are small regulatory RNAs controlling gene expression.
- They are crucial regulators of cellular processes, including cancer initiation, progression, and metastasis.
- Deregulation of miRNAs in cancer highlights their oncogenic and tumor-suppressive functions.
Purpose of the Study:
- To review the multifaceted roles of miRNAs in tumorigenesis.
- To discuss the rationale and strategies for developing miRNA-based cancer therapies.
- To outline the advantages and current challenges associated with miRNA-based cancer treatments.
Main Methods:
- Literature review and synthesis of existing research on miRNA functions in cancer.
- Analysis of studies investigating miRNA deregulation in various cancer types.
- Evaluation of preclinical and clinical data on miRNA-based therapeutic approaches.
Main Results:
- miRNAs play significant roles in all stages of cancer development.
- Specific miRNAs can act as oncogenes or tumor suppressors.
- miRNA-based therapies show promise but face challenges in delivery and specificity.
Conclusions:
- miRNAs are pivotal in cancer biology and represent a promising area for novel cancer therapies.
- Further research is needed to overcome challenges and fully realize the therapeutic potential of miRNAs.
- miRNA-based strategies offer a new avenue for cancer management.
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