A lab study pairs two drugs to kill glioblastoma cells
Original title: Targeting the NAD+ Salvage Pathway Blocks Metabolic Recovery and Enhances β-Lapachone Toxicity in NQO1-Expressing Glioblastoma Cells.
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.
This was only done on cells in a lab dish, not in people.
The short version
In lab dishes, blocking a cell's energy repair system made a test drug better at killing 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.
What was studied. Researchers worked with 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 grown in the lab, including a standard cell line and cells taken from patients. They compared these to normal human brain support cells, and tested a compound called beta-lapachone alone and with a second drug called FK866.
What they found. Many of the 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 made high levels of a protein called NQO1. Beta-lapachone killed those high NQO1 cells but mostly spared cells with low levels, including the normal brain cells. The tumor cells could rebuild a fuel molecule called NAD+ and survive, but adding FK866 blocked that rebuilding and made beta-lapachone more deadly to the tumor cells.
What this means, and what it doesn't
What it could mean: This points to a possible weak spot in some 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. If a tumor makes a lot of NQO1, a drug pair like this might one day be used to attack it. Right now it is an idea that needs much more testing.
What it doesn't mean: This does not mean there is a new treatment. The work was done only on cells in dishes in a lab. It was not tested in animals or in people. It does not show that anyone lived longer or felt better. It is not a promise of a cure.
Source: PubMed, August 1, 2026 · Read the original
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