Tumor cells start to act like injured brain cells after radiation
Original title: Neoplastic and non-neoplastic astrocyte states converge on mesenchymal and injury-response programs during 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 no treatment was tested.
The short version
In mice, tumor cells and nearby brain cells began to look alike after radiation.
What was studied. Researchers used mice bred to grow 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. They compared healthy brain, new tumors, and tumors that came back after radiation.
What they found. They sorted 13 normal cell types and 10 tumor cell states. Some normal support cells, called astrocyte: A star-shaped helper cell in the brain and spinal cord. It is one of the glial cells that sit around nerve cells. An astrocytoma starts in these. See the glossary, switched into an injury mode. Some tumor cells began to act like those injured astrocytes. Those tumor cells built up after radiation and stayed in the tumors that came back.
What this means, and what it doesn't
What it could mean: This may help explain why 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 so often returns after radiation. If these cells do drive the return, they could be a target for future drugs.
What it doesn't mean: This was early lab work in mice, not in people. No treatment was tested here. It is not a cure, and it does not change care today. Years more research would be needed before this could help a patient.
Source: PubMed, October 15, 2026 · Read the original
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