Engineered antibodies that slip inside kidney cysts may offer a powerful new strategy to stop PKD at its source. Credit: Shutterstock Polycystic kidney disease (PKD) is an inherited disorder in which clusters of fluid-filled cysts gradually develop within the kidneys. As these cysts enlarge and multiply, they damage the surrounding tissue and limit the organs' ability to function. Many people with advanced PKD eventually require dialysis. There is currently no cure. Researchers at UC Santa