Lab study finds a switch that changes how brain tumor cells die
Original title: High-throughput spheroid profiling reveals BMP-driven rewiring of glioma cell death responses
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 in tumor cells grown in the lab.
The short version
In lab dishes, one signal made tumor cells shrug off common drugs but open up to a new one.
What was studied. Researchers grew tiny balls of tumor cells taken from people with glioblastoma: A glioma that is given grade 4, the highest grade. It grows fast. Treatment usually starts soon after it is found. It often means surgery, then radiation and chemotherapy. See the glossary and DIPG. They built a fast lab test to see how signals outside the cells changed the way drugs killed them.
What they found. Two signal proteins, BMP2 and BMP4, blocked killing by standard chemo drugs and by targeted drugs called kinase inhibitors. But those same proteins set the cells up to die a different way, one that depends on fat. A drug candidate called tegavivint could trigger that kind of cell death.
What this means, and what it doesn't
What it could mean: This points to a possible new way to kill 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. It may matter most for DIPG. About 25% of DIPG tumors carry a change in a gene called ACVR1, and that change set up the same weak spot on its own. The work also hints that these signals can blunt drugs used today.
What it doesn't mean: This was done in tumor cells grown in the lab, not in people. No patient was treated and no one lived longer because of it. Tegavivint was not tested here in people with brain tumors. It is not a cure, and it is not something a doctor can offer now. Years of more work would be needed first.
Source: bioRxiv (preprint), September 13, 2026 · Read the original
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