A protein called RUVBL1 may help glioblastoma resist the drug temozolomide
Original title: RUVBL1 supports TIP60-associated proteasome adaptation and temozolomide resistance in glioblastoma.
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 done in lab cells and in mice, not in people.
The short version
Lab and mouse tests suggest blocking one protein could make a common brain tumor drug work better.
What was studied. Researchers looked at a protein called RUVBL1 in glioma: A tumor that starts in the glial cells, the support cells of the brain and spinal cord. Gliomas are graded 1 to 4 by how fast they tend to grow. See the glossary tumor samples and in glioblastoma: The fastest-growing type of glioma (grade 4). Treatment usually starts soon after diagnosis: surgery first, then radiation and chemotherapy. See the glossary cells grown in the lab. They also tested a drug called CB-6644, which blocks RUVBL1, together with temozolomide in lab cells and in mice with brain tumors.
What they found. RUVBL1 levels were higher in gliomas. Higher levels went along with higher tumor grade and worse survival. When the team lowered RUVBL1 in tumor cells that had stopped responding to temozolomide, waste proteins built up inside the cells and more of the cells died. In mice, CB-6644 plus temozolomide slowed tumor growth and the mice lived longer, with no clear signs of harm to the rest of the body.
What this means, and what it doesn't
What it could mean: This points to a possible way to make temozolomide work again in tumors that have stopped responding to it. If it holds up, it could lead to a new drug combination to test in people. That testing has not happened yet.
What it doesn't mean: This does not mean there is a new treatment you can ask for. The work was done in tumor cells in the lab and in mice. Mice are not people, and most findings like this never become a treatment. No one in this study was a patient receiving this drug combination. It is not a cure, and it is not a promise that temozolomide will work better for you.
Source: PubMed, August 4, 2026 · Read the original
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