A tumor protein helped immune cells attack brain tumor cells in the lab
Original title: NKp44 recognition of platelet-derived growth factor D enhances the cytolytic activity of natural killer 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 with cells in a dish, not in people.
The short version
In lab dishes, a protein made by tumors switched on immune cells and helped them kill 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 worked with human natural killer cells. These are immune cells that hunt and kill damaged or abnormal cells. The team tested what happened when a tumor protein called PDGF-DD switched on a docking spot on those immune cells called NKp44.
What they found. Switching on that docking spot turned the immune cells into stronger killers. They made more of the substances they use to destroy other cells. They then killed 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 in the dish better than before. This boost did not happen with every kind of cell they tested, so the effect seems to depend on the tumor type.
What this means, and what it doesn't
What it could mean: It shows one possible way to make the body's own immune cells better at attacking glioblastoma: The fastest-growing type of glioma (grade 4). Treatment usually starts soon after diagnosis: surgery first, then radiation and chemotherapy. See the glossary. That idea might one day be built into a treatment. For now it is a clue about how these immune cells work.
What it doesn't mean: This was done with cells in a dish, not in people. No patient was treated, and nothing here was tested for safety in a person. It is not a new treatment, and it is not a cure. Work like this is at the very earliest stage and is many years and many studies away from everyday care, if it ever gets there at all.
Source: PubMed, July 10, 2026 · Read the original
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