A protein on immune cells may help glioma tumors grow
Original title: TREM1 unleashes immunosuppression in glioma: targeting macrophage polarization as a new therapeutic vulnerability.
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 and tissue in the lab, not in people.
The short version
Lab tests found a protein that seems to help brain tumor cells avoid the body's defenses.
What was studied. Researchers looked at a protein called TREM1 in glioma: A tumor that starts in the glial cells, the support cells of the brain and spinal cord. Gliomas are graded 1 to 4 by how fast they tend to grow. See the glossary. They studied tumor data and tumor tissue, then grew immune cells called macrophages together with glioma cells in the lab and turned TREM1 off.
What they found. TREM1 levels were higher in glioma: A tumor that starts in the glial cells, the support cells of the brain and spinal cord. Gliomas are graded 1 to 4 by how fast they tend to grow. See the glossary. Levels were also higher in tumor types that tend to grow faster. TREM1 was tied to a kind of macrophage that can help tumors grow, and it pushed macrophages to become that kind. When TREM1 was turned off in the macrophages, the glioma cells grew, spread, and moved less.
What this means, and what it doesn't
What it could mean: This points to a possible new target for treatment. If TREM1 can be blocked, it might help the immune system fight glioma: A tumor that starts in the glial cells, the support cells of the brain and spinal cord. Gliomas are graded 1 to 4 by how fast they tend to grow. See the glossary better. For now this is an idea for researchers to test, not a treatment a doctor can offer.
What it doesn't mean: This does not mean there is a new treatment. The work was done with tumor data, tissue samples, and cells in dishes. No one was treated with a TREM1 drug in this study. There is no drug ready for people. This is early lab science, and it is not a cure or a promise of one.
Source: PubMed, July 3, 2026 · Read the original
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