Scientists create a cancer flashlight that lights up tumors

Why it matters: Fast, non‑invasive tumor profiling could speed up precision‑cancer care and spare patients unnecessary biopsies.
- University of Missouri‑Columbia created a tiny “minibody” that homes in on EphA2 and carries a radioactive PET tag, lighting up tumors in mouse models.
- EphA2 is a protein overexpressed in many cancers; detecting its levels helps match patients to emerging targeted drugs and avoid ineffective treatment.
- Current diagnostics (biopsies, MRI) are invasive and slow; this immunoPET approach could deliver results in hours, potentially cutting costs and expanding access.
Researchers at the University of Missouri have engineered a minibody that binds the cancer‑associated protein EphA2 and, when labeled with a PET tracer, makes tumors light up on scans, offering a rapid, non‑invasive way to identify patients who could benefit from EphA2‑targeted therapies.




