A plant extract slowed brain tumor cells in the lab
Original title: Additive effect of Ruta graveolens bioactive phytoconstituents and cisplatin through PKC/MEK/ERK pathway in glioblastoma.
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 dish, not in people.
The short version
In lab dishes, an extract from a plant called Ruta graveolens slowed the growth of glioblastoma: The fastest-growing type of glioma (grade 4). Treatment usually starts soon after diagnosis: surgery first, then radiation and chemotherapy. See the glossary cells.
What was studied. Researchers tested a water extract of the plant Ruta graveolens on human glioblastoma: The fastest-growing type of glioma (grade 4). Treatment usually starts soon after diagnosis: surgery first, then radiation and chemotherapy. See the glossary cells grown in the lab. They used three long-term cell lines and three cell cultures taken from patients. Cells got the extract alone, the chemo drug cisplatin alone, or both together.
What they found. The extract slowed the growth of U-87 MG cells. It did not make the cells kill themselves, but it did stop them at one step of cell division. The team also found the extract blocked a set of cell signals called the PKC/MEK/ERK pathway. Adding the extract let them use a lower, non-deadly dose of cisplatin, 0.2 microgram per milliliter.
What this means, and what it doesn't
What it could mean: This points to one way a plant extract might slow glioblastoma: The fastest-growing type of glioma (grade 4). Treatment usually starts soon after diagnosis: surgery first, then radiation and chemotherapy. See the glossary cells. It also hints it might let a chemo drug work at a lower dose. That idea would need to be tested in people before anyone knows if it helps.
What it doesn't mean: This does not mean Ruta graveolens treats brain tumors in people. The work was done on cells in dishes, not in patients. It is the earliest stage of research, and most lab findings never become treatments. It is not a promise of a cure, and no one should take this plant or change their care because of this study. Talk to your care team before trying any supplement.
Source: PubMed, August 12, 2026 · Read the original
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