Precision RNA therapy: A new approach to treating ovarian cancer

This project is developing a novel RNA-based therapy for ovarian cancer. Researchers will test mRx-7, an enhanced microRNA designed to target tumour growth, across a range of preclinical models and compare its effectiveness with standard chemotherapy. The study will also explore targeted delivery methods to improve treatment precision and support future clinical translation.

Research overview

Ovarian cancer remains a significant unmet clinical challenge in Australia. Due to late-stage diagnosis and the frequent development of resistance to standard treatments (surgery followed by chemotherapy), there is an urgent need for more effective, targeted therapies.

This project investigates a novel RNA-based therapeutic approach using microRNA-7, a naturally occurring molecule that regulates genes involved in cancer growth. The team will evaluate an enhanced form, mRx-7, which has been designed to more effectively suppress tumour-promoting pathways in ovarian cancer cells. The study will assess the efficacy of mRx-7 across multiple preclinical models, including ovarian cancer cell lines, patient-derived tumour organoids, and mouse models. Its performance will be compared with standard chemotherapy both as a standalone treatment and in combination.

To accelerate translation, the research team will also test two targeted delivery strategies – lipid nanoparticles and receptor-specific ligands – to maximise tumour specificity and minimise off-target effects.     

Project researchers

Professor Peter Leedman

Funders

Women and Infants Research Foundation

Project timeline

2026 – 2027

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