Related Experiment Video
Updated: Apr 5, 2026

MicroRNA Amplification and Recognition through Locked-nucleic-acid In situ Hybridization as a Novel Detection and Quantification Method
Published on: October 7, 2025
Clinical Potential of microRNA-7 in Cancer
Jessica L Horsham1,2, Felicity C Kalinowski3, Michael R Epis4
1Laboratory for Cancer Medicine, Harry Perkins Institute of Medical Research, The University of Western Australia Centre for Medical Research, Perth, WA 6000, Australia. jessica.horsham@perkins.uwa.edu.au.
Abstract:
microRNAs (miRNAs) are a family of short, non-coding RNA molecules that drive a complex network of post-transcriptional gene regulation by enhancing target mRNA decay and/or inhibiting protein synthesis from mRNA transcripts. They regulate genes involved in key aspects of normal cell growth, development and the maintenance of body homeostasis and have been closely linked to the development and progression of human disease, in particular cancer. Over recent years there has been much interest regarding their potential as biomarkers and as therapeutic agents or targets. microRNA-7 (miR-7) is a 23 nucleotide (nt) miRNA known primarily to act as a tumour suppressor. miR-7 directly inhibits a number of oncogenic targets and impedes various aspects of cancer progression in vitro and in vivo, however, some studies have also implicated miR-7 in oncogenic roles. This review summarises the role of miR-7 in cancer, its potential in miRNA-based replacement therapy and its capacity as both a diagnostic and prognostic biomarker.
Insights
MicroRNA-7 (miR-7) primarily functions as a tumor suppressor, inhibiting cancer progression. However, its dual role in cancer warrants further investigation for biomarker and therapeutic applications.
Area of Science:
- Molecular Biology
- Genetics
- Oncology
Background:
- MicroRNAs (miRNAs) are short, non-coding RNA molecules regulating gene expression post-transcriptionally.
- miRNAs are implicated in cellular processes, homeostasis, and diseases, notably cancer.
- miRNA-7 (miR-7) is recognized for its tumor-suppressive functions.
Purpose of the Study:
- To review the multifaceted role of miR-7 in cancer.
- To explore miR-7's potential in miRNA-based replacement therapy.
- To assess miR-7 as a diagnostic and prognostic biomarker.
Main Methods:
- Literature review of studies on miR-7 in cancer.
- Analysis of miR-7's direct oncogenic targets.
- Evaluation of in vitro and in vivo cancer models involving miR-7.
Main Results:
- miR-7 directly targets and inhibits multiple oncogenic factors.
- Evidence supports miR-7's role in impeding cancer progression.
- Some studies suggest potential oncogenic roles for miR-7.
Conclusions:
- miR-7 exhibits significant tumor-suppressive activity.
- miR-7 holds promise as a biomarker and therapeutic target in oncology.
- Further research is needed to fully elucidate miR-7's complex roles in cancer.
Related Concept Videos
MicroRNAs
MicroRNAs
MicroRNAs
mTOR Signaling and Cancer Progression

