Lab study looks at why some brain tumor cells resist radiation
Original title: CCND1 Stability Regulated by USP7 Deubiquitination Controls Glioma Radioresistance via Ferroptosis.
How far along is this research?
- Lab cells
- Animals
- Review
- Tested in people
This was done on cells in a lab, not in people. It is a very early step.
This was only tested on tumor cells in the lab.
The short version
Scientists found two proteins in glioma: A tumor that starts in the glial cells, the support cells of the brain and spinal cord. Gliomas are given a grade from 1 to 4 describing how the tumor is expected to behave. See the glossary cells that may help them survive radiation.
What was studied. Researchers looked at a protein called CCND1 in glioma: A tumor that starts in the glial cells, the support cells of the brain and spinal cord. Gliomas are given a grade from 1 to 4 describing how the tumor is expected to behave. See the glossary tissue and in glioma cells in the lab. They tested what happened when they lowered CCND1 and then treated the cells with radiation.
What they found. CCND1 was higher in glioma: A tumor that starts in the glial cells, the support cells of the brain and spinal cord. Gliomas are given a grade from 1 to 4 describing how the tumor is expected to behave. See the glossary tissue, and this was linked to a worse outlook. When the scientists lowered CCND1, the cells grew less, more of them died, and radiation worked better on them. A second protein, called USP7, kept CCND1 from breaking down, and adding more USP7 undid these effects.
What this means, and what it doesn't
What it could mean: This may help explain why radiation does not always work well on glioma: A tumor that starts in the glial cells, the support cells of the brain and spinal cord. Gliomas are given a grade from 1 to 4 describing how the tumor is expected to behave. See the glossary. Someday, a drug that blocks USP7 might help radiation work better. That idea still needs a lot more testing.
What it doesn't mean: This was done in lab cells, not in people. No new treatment came from this study. It will take many more years of research before anything like this could reach patients. It is not a cure.
Source: PubMed, January 1, 2026 · Read the original
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