Abitua [Public domain] via Wikimedia CommonsTreacher Collins syndrome (TCS) is a craniofacial development disorder that affects roughly 1 in 50,000 people. It is characterized by underdeveloped facial bones, which frequently results in a sunken appearance in the middle of the face, a prominent nose, a very small jaw and chin and downward-slanting eyes; some affected individuals also have cleft palate and malformed or absent ears. Now, researchers have found a way to prevent development of the disorder in a mouse model by inhibiting the function of p53, a tumor suppressor protein.