A new lab test looks for brain tumor signs in blood
Original title: Cascade-coupled colorimetric-fluorescent dual-signal detection of EGFR-positive extracellular vesicles via bifunctional MOF@Pt nanozyme integrated with a CHA-CRISPR system.
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 is early lab work, tested only on stored blood samples.
The short version
Scientists built a lab test that spots signs of a brain tumor in a blood sample.
What was studied. Researchers made a new lab tool to find tiny bubbles that 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 cells shed into blood. They tried the tool on blood from 25 people with glioma and 20 healthy people.
What they found. The tool could pick up as few as 427 particles per microliter of blood. That was 6.9 times better than an earlier version of the tool. It also picked up a tumor marker in the blood at very low levels. The tool told the two groups apart well. Using two signals looked a bit better than one, but that small gain could be chance.
What this means, and what it doesn't
What it could mean: One day a simple blood draw might help doctors find or follow a 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. That could mean fewer tests that are hard on the body. Nothing changes in your care right now.
What it doesn't mean: This is not a test you can ask for. It is early lab work, not a tool used in clinics. It does not treat a tumor, and it is not a cure. Only a small number of blood samples were tested. Much more work is needed before doctors could use it.
Source: PubMed, August 23, 2026 · Read the original
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