Related Experiment Video
Updated: May 2, 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 gastrointestinal malignancy: a tool in cancer prevention?
Karen E Mactier1, Mark A Glaire, Umesh Basavaraju
1Division of Applied Medicine, Institute of Medical Sciences, School of Medicine & Dentistry, University of Aberdeen, Aberdeen, UK.
Abstract:
Gastrointestinal malignancies are a major cause of morbidity and mortality worldwide. Most cases are diagnosed at an advanced stage and, as such, 5-year survival rates are poor. MicroRNAs (miRNAs) are short, noncoding RNAs that negatively regulate gene expression at a post-transcriptional level. It is now evident that miRNAs are essential for normal physiological functioning, and aberrant miRNA expression is a hallmark of human cancers, including gastrointestinal cancers. Initially seen as a very promising source of breakthroughs in cancer management, there has been little translation of miRNA science from the bench to the bedside. This review will summarize the role of miRNAs in the pathogenesis of gastrointestinal malignancies. Further, it will serve to highlight the potential role of miRNAs in cancer prevention: namely their use as biomarkers and as targets for chemoprevention.
Insights
MicroRNAs regulate gene expression and are crucial in gastrointestinal cancers. This review explores their role in disease development and potential as biomarkers for prevention and treatment.
Area of Science:
- Molecular Biology
- Oncology
- Genetics
Background:
- Gastrointestinal malignancies represent a significant global health burden, characterized by late diagnosis and poor survival rates.
- MicroRNAs (miRNAs) are key regulators of gene expression, essential for normal cellular function.
- Aberrant miRNA expression is a recognized hallmark of various human cancers, including those affecting the gastrointestinal tract.
Purpose of the Study:
- To review the critical role of microRNAs in the pathogenesis of gastrointestinal malignancies.
- To highlight the potential of microRNAs as biomarkers for early detection and prognosis.
- To explore microRNAs as targets for novel chemoprevention strategies in gastrointestinal cancers.
Main Methods:
- Literature review of scientific articles and research studies.
- Analysis of existing data on miRNA expression patterns in gastrointestinal cancers.
- Synthesis of information regarding miRNA function in cancer development and progression.
Main Results:
- MicroRNAs play a significant role in the development and progression of gastrointestinal cancers.
- Dysregulated miRNA expression is consistently observed across different gastrointestinal malignancies.
- Despite promising research, the clinical translation of miRNA-based therapies remains limited.
Conclusions:
- MicroRNAs are integral to the pathogenesis of gastrointestinal cancers.
- MicroRNAs hold substantial promise as diagnostic and prognostic biomarkers.
- Targeting microRNAs offers a potential avenue for gastrointestinal cancer chemoprevention and therapy.
More Related Videos
Related Concept Videos
01:22MicroRNAs
01:22MicroRNAs