A gel put in the brain after surgery slowed tumor regrowth in mice
Original title: Targeting tumour-neuron synapses with intracavitary RNA delivery prevents glioblastoma recurrence.
How far along is this research?
- Lab cells
- Animals
- Review
- Tested in people
This was done in animals, not people. Most findings at this stage never become treatments.
This was only done in mice and lab models, not in people.
The short version
In mice, a gel placed where the tumor was removed kept it from growing back.
What was studied. Researchers studied human glioblastoma: The fastest-growing type of glioma (grade 4). Treatment usually starts soon after diagnosis: surgery first, then radiation and chemotherapy. See the glossary samples to find a target on tumor cells at the tumor's edge. They then built a gel that drops off tiny bits of RNA to switch off that target, and tested it in mice after surgery.
What they found. The gel slowed tumor regrowth and the mice lived longer. In one mouse model, survival went from 32 days to 67 days. More than 30% of treated mice lived past 90 days. The treated mice were also less anxious and had better memory, and their movement was not harmed. Adding radiation cut back tumor spread even more.
What this means, and what it doesn't
What it could mean: This points to a new way to treat the small bit of tumor left behind after surgery. Instead of a drug that goes through the whole body, the medicine stays right where it is needed. That may lower the chance of harming healthy brain cells. For now this is an idea being worked out in the lab.
What it doesn't mean: This does not mean there is a new treatment you can ask for. The work was done in mice and in lab models, not in people. No one knows yet if it is safe or if it works in humans. That takes years of testing. This is not a cure, and it is not a promise of one.
Source: PubMed, August 25, 2026 · Read the original
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