A new drug blocks a brain tumor protein in lab and animal tests
Original title: Pharmacologic inhibition of OLIG2 by CT-179 disrupts mitotic progression and enhances standard-of-care chemoradiotherapy in glioblastoma
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 tested in lab dishes and animals, not in people.
The short version
A test drug called CT-179 slowed 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 growth in lab dishes and in mice.
What was studied. Scientists tested a drug called CT-179. They used eleven 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 cell lines taken from patients, plus zebrafish and mice with brain tumors. They also tried the drug together with radiation and the chemo drug temozolomide: A chemotherapy taken as a capsule, used for some brain tumors. Your team checks your blood counts while you are on it. See the glossary.
What they found. CT-179 latched onto a tumor protein called OLIG2, which was long thought to be impossible to target. It slowed growth in all eleven cell lines and made tumor cells die. Taken by mouth, it got into the brain and helped mice live longer. Added to radiation and temozolomide: A chemotherapy taken as a capsule, used for some brain tumors. Your team checks your blood counts while you are on it. See the glossary, it wiped out all GBM8 tumors and 7 of 8 GBM4 tumors in mice, with no weight loss.
What this means, and what it doesn't
What it could mean: Researchers may have found a way to hit a tumor target that was out of reach before. If it keeps working, it could one day be tested in people alongside the usual radiation and chemo. For now it points to a possible future option, nothing more.
What it doesn't mean: This does not mean a new treatment is close. All of the work was done in lab dishes, zebrafish, and mice, not in people. No one knows yet if CT-179 is safe or helpful for humans. It is not a cure, and no patient can get this drug today.
Source: bioRxiv (preprint), October 20, 2026 · Read the original
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