A new lab drug may help chemo work better on brain tumor cells
Original title: Development of DCL1191 as a Potent, Selective and Orally Bioavailable Inhibitor for Autophagy-Associated Transcription Factor EB (TFEB).
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.
The tumor testing was only done on cells in a dish, not in people.
The short version
A new lab drug helped chemo kill brain tumor cells in dish tests.
What was studied. Researchers built a new drug called DCL1191 to block a protein named TFEB. They tested it on U87 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, and checked how it moved through the bodies of rats.
What they found. DCL1191 stuck to TFEB and stopped it from switching on its target genes. It also shut down the way cells recycle their own parts. In the U87 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, it made 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 work much better. In rats, the drug worked when given by mouth and stayed in the body for hours.
What this means, and what it doesn't
What it could mean: Some brain tumor cells survive chemo by recycling their own parts for fuel. This drug is an attempt to close off that escape route. If the work holds up, a drug like this might one day be paired with 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. That is still a long way off.
What it doesn't mean: This is early lab work. The tumor testing was done on cells in a dish, not in people. The animal tests only looked at how the drug moves through the body, not whether it helps a tumor. No one knows yet if it is safe or useful for patients. It is not a cure, and you cannot get it today.
Source: PubMed, October 22, 2026 · Read the original
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