A drug called raloxifene slowed brain tumor cells in the lab
Original title: Raloxifene suppresses growth and promotes intrinsic apoptotic signaling in C6 glioma 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 tumor cells in a lab dish, not in animals or people.
The short version
In a lab dish, a drug called raloxifene slowed the growth of rat brain tumor cells and made those cells die off.
What was studied. Researchers tested a drug called raloxifene on rat brain tumor cells called C6 cells. They looked at whether the cells stayed alive, grew, moved, and formed clumps, and they checked the genes and proteins tied to cell death.
What they found. Raloxifene made the tumor cells die off. It also slowed their growth. The effect got stronger with a higher amount of the drug and with more time, compared to cells that got no drug.
What this means, and what it doesn't
What it could mean: This gives scientists a reason to keep studying raloxifene for glioblastoma: The fastest-growing type of glioma (grade 4). Treatment usually starts soon after diagnosis: surgery first, then radiation and chemotherapy. See the glossary, the most common cancerous brain tumor. Raloxifene is a drug that acts on estrogen signals in the body. The researchers point out that glioblastoma is less common in women than in men, which is part of why they wanted to test it.
What it doesn't mean: This does not mean raloxifene treats brain tumors in people. The work was done only on rat tumor cells in a dish. It was not tested in any person, and it was not tested in a living animal. Cells in a dish often behave differently than a tumor inside the body, and most drugs that work at this stage never become a treatment. This is a very early lab result, not a cure and not a promise of one. Do not ask for this drug for a brain tumor based on this study.
Source: PubMed, August 7, 2026 · Read the original
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