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Updated: May 24, 2026
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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
miRNAs highlights in stem and cancer cells
E Martignani1, S Miretti, P Accornero
1Dept. of Veterinary Morphophysiology, Grugliasco (TO), University of Turin, Italy.
Mini Reviews in Medicinal Chemistry
|February 23, 2012
Summary
MicroRNAs (miRNAs) regulate gene expression and are crucial for cell functions. Dysregulated miRNA levels in cancer suggest their potential as therapeutic agents for neoplastic diseases.
Area of Science:
- Molecular Biology
- Genetics
- Biochemistry
Background:
- MicroRNAs (miRNAs) are small endogenous RNA molecules regulating gene expression by targeting messenger RNAs (mRNAs).
- They are vital in eukaryotic cellular processes including proliferation, differentiation, apoptosis, and stem cell self-renewal.
- Over 1,000 human miRNAs have been identified, with predictions indicating they target approximately 60% of human mRNAs.
Purpose of the Study:
- To review the role of miRNAs in cell cycle regulation, focusing on proliferation and differentiation.
- To explore the function of miRNAs in embryonic stem cell regulation, cellular reprogramming, and adult stem cell activation.
- To discuss the involvement of miRNAs in neoplastic diseases, including genetic and transcriptional alterations in tumor development and cancer stem cell activation.
Main Methods:
- Literature review of recent acquisitions on miRNA functions.
- Analysis of miRNA roles in cell cycle, stem cell biology, and cancer.
- Focus on genetic and transcriptional alterations in tumor development.
Main Results:
- miRNAs are key regulators of cell proliferation and differentiation.
- They play significant roles in embryonic stem cell regulation, reprogramming, and adult stem cell activation.
- Aberrant miRNA levels, particularly downregulation, are observed in many cancers, implicating them in tumor development and cancer stem cell activation.
Conclusions:
- miRNAs are critical regulators of fundamental cellular processes and stem cell biology.
- Their dysregulation is linked to cancer development, highlighting their potential as therapeutic targets.
- Further research into miRNA functions can lead to novel strategies for treating neoplastic diseases.
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