A lab look at tracking glioblastoma treatment with tiny cell bubbles
Original title: Effects of panitumumab on the proteome of treated EGFRvIII glioblastoma cells and on their extracellular vesicles
How far along is this research?
This is a preprint. Other scientists have not checked it yet, so treat it as an early signal rather than an answer.
This was only done with cells in a dish, not in people.
The short version
Lab tests explored a future way to tell if a glioblastoma: A glioma that is given grade 4. Grade 4 is the highest grade there is. The tumor grows fast. Treatment usually starts soon after it is found. It often means surgery, and then radiation and chemotherapy. See the glossary drug is working.
What was studied. Researchers grew glioblastoma: A glioma that is given grade 4. Grade 4 is the highest grade there is. The tumor grows fast. Treatment usually starts soon after it is found. It often means surgery, and then radiation and chemotherapy. See the glossary cells in a dish. Some had a changed protein called EGFRvIII, which is found in more than 40% of glioblastoma patients. They treated the cells with a drug called panitumumab. Then they studied the tiny bubbles the cells release.
What they found. The drug lowered the amount of EGFRvIII on the surface of the tiny bubbles. Inside the cells, that amount did not drop much. The bubbles also showed many more protein changes than the cells did.
What this means, and what it doesn't
What it could mean: This is early lab work on a possible test, not a new treatment. Someday a blood test might show if an EGFR drug is working. That could help doctors spot a problem and change course sooner.
What it doesn't mean: This was done with cells in a dish, not in people. It does not mean panitumumab helps people with glioblastoma: A glioma that is given grade 4. Grade 4 is the highest grade there is. The tumor grows fast. Treatment usually starts soon after it is found. It often means surgery, and then radiation and chemotherapy. See the glossary. No test like this is available at your clinic today. It is not a cure, and it is not a promise of one.
Source: bioRxiv (preprint), October 25, 2026 · Read the original
This plain-language summary was written by AI and published automatically after passing our automatic safety checks. How we write.