A protein that helps glioblastoma resist temozolomide
Original title: PLOD1 Catalytic Activity Stabilizes ENO1 by Limiting FBXW7-dependent Degradation to Promote Glycolysis and TMZ Resistance in Glioblastoma.
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 done in lab samples and in mice, not in people.
The short version
Lab work found a protein pair that may help brain tumors survive chemotherapy.
What was studied. Researchers studied why 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 stops responding to the chemotherapy 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. They looked at a protein called PLOD1, tested it in tumor samples and in mice with implanted tumors.
What they found. PLOD1 was high in tumors that resisted 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 kept another protein, ENO1, from being broken down. That let the tumor burn more sugar for fuel. Tumors with high levels of both proteins were linked to worse outcomes for patients. In mice, blocking this pair slowed tumor growth and made temozolomide work better.
What this means, and what it doesn't
What it could mean: This points to a possible new target for treating 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 that no longer responds to 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. The two proteins might also help doctors judge how a tumor is likely to behave.
What it doesn't mean: This is early lab and animal research. There is no drug for people that blocks these proteins. It has not been tested in a human trial, so we do not know if it is safe or if it helps. It does not change treatment today, and it is not a cure.
Source: PubMed, September 27, 2026 · Read the original
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