Researchers have pinpointed a communication system located in the tiny, antenna-like structures on cells, called cilia. This system appears to be important for normal heart development, and its disruption may be tied to congenital heart defects.

The study indicates that when genetic mutations interfere with this signaling machinery, the effects may not stay confined to the heart. Other organs, including the brain, kidneys, and skeleton, could also be affected, suggesting a broader developmental role for these cellular antennas.

These findings offer a possible explanation for why some babies are born with heart defects, and they point to cilia as a promising focus for future research into developmental disorders.