Study Reveals Heart's Beating Suppresses Tumor Growth in Cardiac Tissues
Researchers at the International Centre for Genetic Engineering and Biotechnology (ICGEB) have discovered that the heart's constant beating may actively suppress tumor growth in cardiac tissues. The study, led by Giulio Ciucci, PhD, and Serena Zacchigna, MD, PhD, involved experiments on mouse models and engineered heart tissues. The findings suggest that mechanical forces in the heart alter gene regulation in cancer cells, preventing their proliferation. The research highlights the role of mechanical load in inhibiting cancer cell growth, potentially explaining the low incidence of cardiac tumors. The study utilized a genetically engineered mouse model to demonstrate the heart's resistance to cancer-causing mutations, even when potent oncogenic changes were introduced. By creating a 'mechanically unloaded' heart through transplantation, researchers observed increased tumor cell proliferation, contrasting with the suppression seen in mechanically active hearts. 
