Hidden Cancer Cells Found in Tumors | Science News

Science News Today | 2 Min News | The Daily News Now! · Sep 6, 2026 · 1m

Scientists have uncovered hidden pockets of dormant breast cancer cells shielded by immune and connective tissue, allowing them to survive treatments that target only rapidly dividing cells. These stealthy cells can lie dormant, evading chemotherapy, then reawaken to cause recurrence. Using advanced tumor mapping, researchers found these cells are consistently surrounded by protective cellular neighborhoods, revealing how the tumor’s environment shields them. Future therapies may need to combine strategies to attack both active and dormant cells — potentially stopping cancer growth and…