Breakthrough in Cancer Treatment: Nanoparticles Improve Ultrasound-Based Therapy

Researchers at Oregon Health & Science University (OHSU) have created a new kind of nanoparticle that enhances the effectiveness and safety of ultrasound-based cancer treatments. This innovative approach combines high-intensity focused ultrasound with powerful chemotherapy drugs, making it more efficient and reducing the risk of cancer recurrence.

Key Takeaways:

• The new nanoparticles are designed to target tumors and release energy that helps destroy cancer cells when treated with focused ultrasound.
• These particles are coated with a peptide that helps them stick to tumors and enter cancer cells more easily, improving treatment efficacy.
• The nanoparticles reduce the energy needed for ultrasound treatment by up to 100-fold, allowing for short pulses that disrupt tumors without overheating surrounding tissue.
• In preclinical models of human melanoma, the combined treatment led to deeper tumor destruction and more effective drug delivery than either treatment alone.
• The new platform could eventually be used for treatments beyond cancer, including infections and cardiovascular disease.

Statistics:

• Up to 100-fold reduction in energy needed for ultrasound treatment due to the nanoparticles.
• 60+ days of improved overall survival observed in some cases when using the combined treatment in mice with human melanoma tumors.
• Tumors completely disappeared in some cases when using the combined treatment.
• The new nanoparticles are approximately 1,000 times smaller than the width of a sheet of paper.

Sources:

• "Researchers Develop New Nanoparticle for Ultrasound-Based Cancer Treatment" published in VerticalNews Health on 2025 JUN 1.
• Study published in the journal Nano Letters (exact reference not provided).
• Oregon Health & Science University news release (exact reference not provided).