Researchershave created the most detailed map to date of meningioma, the most common brain tumor in adults. The study found that the tumor’s surrounding environment, particularly immune cells known as myeloid cells, plays a major role in determining how the cancer grows, returns, and responds to treatment.
Using advanced technologies such as single-cell sequencing and spatial transcriptomics, scientists analyzed more than 500,000 individual cells from hundreds of tumor samples. This allowed them to identify distinct cellular patterns and interactions that differ between less aggressive and more aggressive tumors.
The findings suggest that specific immune-cell signatures may predict the likelihood of tumor recurrence more accurately than current grading methods. Researchers believe these biological markers could eventually be detected through blood tests, enabling doctors to monitor patients noninvasively and personalize treatment decisions, including surgery, radiation, or observation.
The study also uncovered new ways tumor and immune cells communicate, revealing potential targets for future therapies. Researchers are now planning larger multicenter studies to confirm the findings and help bring these discoveries into routine clinical practice.