Cystine RCC (IMAGE) Duke University Caption The majority of kidney cell carcinomas are missing the VHL tumor-suppressor gene. Duke researchers showed that these renal cancer cells remain healthy when all nutrients are present (left panel), but quickly swell up and die of necrosis when deprived of cystine (right panel). Credit Chien-Kuang Ding, Duke University Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.